text:
User:Amanda Mc

=Freshman Seminar=

Always Wanted To Schedule

 * Topic

'' My goal is to shoot a concert with a DSLR camera. It is something that I have always wanted to do, but have never been granted access to a show with professional equipment. ''
 * Research Component

I will research types of gear commonly used at concerts, what to expect at different venues and with different styles of music, and study the techniques used by professionals.
 * week 1

begin research on camera gear

 * week 2

look up local shows at the showbox, el corazon, etc. contact a professional who is willing to disclose information, if at all possible. begin contacting bands

 * week 3

continue contacting bands.

 * week 4

continue contacting bands. if responded to, begin planing shoot.

 * week 5

continue contacting bands. if responded to, plan shoot. research that band, watch youtube videos, study their musical and performance style.

 * week 6

continue contacting bands. if responded to, plan shoot. find out where to get the necessary camera gear.

 * week 7

attend show. edit pictures.

 * week 8

edit pictures and prepare cds.

Midterm Assignment 1: Taste & Aesthetics
Stinger is a 6 ft. 6 in. x 33 ft. 4 1/4 in. x 33 ft. 4 1/4 in. box made out of steel and black paint, created by American Tony Smith in 1967-68. Smith, a theorist on art, trained under Frank Lloyd Wright beginning in 1939 where he was first introduced to the idea of concrete blocks as he studied architecture. A part-time student at the Art Students League of New York, Smith dabbled in painting before he began sculpting in 1956. His first exhibits were being held a mere 8 years later in 1964, where he was known for his minimalist formations. During the ‘40s and ‘50s he became friends and allies with artists Barnett Newman, Clyfford Still, Mark Rothko, and Jackson Pollock, whose abstract styles greatly influenced his own work.

To be completely honest with you, going into this assignment I considered myself a very open minded person in regards to abstract art. Apparently, this is not the case. At least, not as readily as I believed. The sculpture in question is supposed to represent a sort of ancient fortress, with three closed sides and one open, beckoning the viewer inside as it rests on a single point and seems to ‘hover’ above the ground. Smith changed the piece’s name from appropriate One Gate to Stinger, after a cocktail that is “deceptively sweet but slyly intoxicating.” I can tell you I tried to change my mind… maybe not to the point of tears, but I did attempt it. I regarded my initial distaste as merely not understanding the artist’s intent. However, after researching the history behind this structure I have found that I may like it less than I did before. I can respect Smith’s desire to engage the viewer in the negative space of the piece, creating both a physical and spiritual passage into its interior… but this is not my cup of tea. I am in no way discouraged or disillusioned by the fact that I have not convinced myself to like something contrary to my own tastes. I believe that there are choices (such as ice cream or TV shows) that are completely determined by each person’s preferences, as well as other choices (like the choice of insulin to battle diabetes) that are fact based with a clear-cut right or wrong answer. This choice falls into the first category of preferences, so I am not too worried about not changing my mind. I do thoroughly enjoy abstract painting, which is why Smith's association with Jackson Pollock put him slightly more in my favor, however the piece itself leaves me feeling empty and desiring further meaning. Maybe that was the original intent, and if that was the case, well done Tony Smith. But I am still not a fan.

Midterm Assignment 2: Manipulation

 *  Bandwagon Argument (Peer Pressure)
 * This fallacy plays on one’s natural desire to belong to a group and fear of being rejected, or left out...

 *    Levi's - O Pioneers! (Go Forth) commercial: '''
 * http://www.youtube.com/watch?v=HG8tqEUTlvs

 * False Dilemma (Either/Or reasoning)
 * A false dilemma takes a range of options and reduces it to two—a hero and a villain...

 *    Apple Get A Mac "Stacks" Commercial: '''
 *  http://www.youtube.com/watch?v=KeVjSQ7GYcc

Midterm Assignment 3: Always Wanted To Progress Report (100 words or so)
My “Always Wanted To” project is actually going a lot better than I had anticipated. There was a week or two in the middle that I slacked off a bit, but then I contacted the son of a woman in my church who is friends with a local band and they are willing to let me come shoot their show this coming weekend. The band is virtually unheard of, so I’m excited to be a part of their promotion. It would be cool to say I knew them before they were big and was at one of their first shows. I think I will probably check a camera and lens out from the school to use as a back-up body so I don’t have to keep switching out lenses between wide angle and telephoto at the show. I have also contacted a few larger names (Norma Jean, The Classic Crime, The Used…), but have yet to hear back from them. I’m not holding my breath, but it would be cool.

Final Presentation

 * Topic (10%)

Concert Photography with a DSLR

 * Research (20%)

 * 1) Internet site: Owyoung, Todd. "Gear Guide." Gear Guide. Todd Owyoung, 17 July 2007. Web. 19 Oct. 2009. .

 * 2) Book: Mulhern, Tom, and Jon Sievert. Concert Photograpy: How to Shoot and Sell Music Business Photographs. Daly City, CA: Humble, 1997. Print.

 * 3) Scholarly Journal: The dying art of gig photography: Today's concert photos strangled by restrictions (2008). Buzznet. MiseryXchord, 13 Oct. 2008. Web. 20 Nov. 2009. .

 * 4) Other (interview): Deitz, Isaac. "Question, from one artist to another..." E-mail interview. 4 Nov. 2009.

 * Your accomplishment (20%)

I completed it! With the help of a woman in my church (whose son has connections with a local band) I was able to shoot a show for the first time with my Canon 40D. The concert was a house show at The Black Lodge in Seattle and the band was a small, upcoming indie group called X-Ray Press. I took all of my fastest equipment (and then some) to the tiny venue with me, only to find that the house promoted total darkness with only a small light to the right of the stage, another light behind that was pointed toward the wall, and some Christmas lights along the ceiling. I was able to turn the light behind them up so that it pointed at the members, sometimes creating a cool silhouette effect, but I was still forced to shoot with an aperture of 1.4, a shutter speed of 1/30 – 1/15 of a second, with an iso of 1600, which resulted in the ridiculous amount of grain in my images. Only after the show did I learn that I could have used flash. Overall it was a fantastic learning experience and I am very grateful for the opportunity.
 * If anyone is interested, they have music on their myspace at http://www.myspace.com/xraypress

 * Project Review (50%)

 * 1) What went well: The band members and my contact were extremely nice and loved that I was there shooting their band. I had a few good concept shots and managed to work the grain into the aesthetics of the pictures fairly well. Also, I learned to research a location more than I did before the show.
 * 2) What went poorly: The lighting was terrible. Absolutely terrible.
 * 3) Future strategies: I will research venues more thoroughly and find out what I can and cannot use (esp. flash) before the show.

title: User:Amanda Mc


text:
User:Kelcieh

=Analytical Writing=

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/

title: User:Kelcieh


text:
User talk:Stevenarntson/group spaces/2009fallanalytical/group 2

Workshop

 * How do you become homeless?
 * How do you escape homelessness?
 * History: More than Seattle?
 * Definition of homelessness
 * Race/Felonies/Gender/Drug Abuse
 * Myths - things blown out of proportion
 * Citation Works Cite in MLA
 * Real Change Magazine
 * Dignity Village
 * Interviews? -Real Change

General Discussion
Hey guys, I am going to define homelessness, Look up Dignity village, and the real change magazine and attach it where I feel is appropriate in our paper. If any of you feel inclined to pick some of the topics/issues brought up in Workshop that would be great! AshleyLincoln

Useful Research Links

 * Here is an NPR story I just heard yesterday on the radio, and thought of you, group 2. Stevenarntson
 * Small history of Nickelsville
 * Tent City/Temporary permits
 * Tent City/Nickelsville These sites have a few different view points. Both Positive and negative. Few statements made by members of Nickelsville/Tent cities.
 * CNN viewpoints on Tent cities. Good video clips on Tent citiesAshleyLincoln
 * Homelessness and Mental Illness This site doesn't have much information in terms of hard facts, but it shows an interesting viewpoint. Stephenmhogan
 * Addictions and Chronic Homelessness Pretty general information on a nationwide scale. Stephenmhogan
 * Another one on mental illness and homelessness Stephenmhogan
 * Night Watch Some information on homeless rates, as well as another organization that works with the homeless. JennaJohnson
 * Homelessness as an economic asset Some statistics that the Gates Foundation has come up with, as well as some info on housing and the organization. JennaJohnson
 * This one has some interesting stuff about the stereotypes of homeless people and how they perpetuate. Stephenmhogan
 * City official Discussion A discussion about Seattle and the current and past homeless situation JennaJohnson

 * http://www.nickelsvilleseattle.org/ AshleyLincoln


text:
User:Cherrykyle

=Analytical Writing=

Group Name
Drugs not Hugs

Critique
((I'm not exactly sure where to post this so I'll put it in your critique section. Makes sense right?))

First off, I think this is an excellent topic and it obviously has a lot of personal relevance to you as a person. I think you might be able to make it a bit less like a rant though. And I wasn't sure what to make of the indented sections, they didn't really fit with the rest of the essay. Otherwise good job. JenniferBrannon

Personal Essay
Kyle Cherry Analytical Writing Personal Essay 12-02-09

'''Personal Essay '''

When one thinks of insurance, in todays America, thoughts of despair and hate come to mind. Insurance companies have been making record profits but we continue to pay more each year, getting less coverage. Health insurance need reform in many ways. By using my own experiences I hope to paint a picture of why we need insurance reform.

In the last two years I have had four different insurance plans from four different companies. Each insurance company had their own quirks and problems except for one. For five months, I was covered by my employer with Microsoft Alumni Heath Insurance. The Microsoft Insurance was provided by United Heath Care, covering almost everything I needed. I got what I, and my employer, was paying for. The three other heath insurance providers have been a pain and covered very little and cost the same.

It is not heath care that needs reforming, it is the insurance. We need to create laws that make heath insurance competitive, forcing better rates and service. If insurance could be sold across state lines it would remove the monopolistic control within each state. The experience would be more like buying a new car than being robed.

I have acid reflex disease. To prevent me from having heart burn throughout the day, I have to take a prescription acid reducer. Not all acid reducers work as well as others and some have harsh side effects. Since the age of 13, I have been taking a medication called Aciphex. Aciphex has worked with no side effects. I continued to use it until a year ago when my insurance dropped it from my plan. They did this without warning.

I went to pickup my prescription at the drug store only to find it was not what I was prescribed. After researching the new drug, I discovered it had common side effects like diarrhea and bone loss. The bone loss could happen if taken for more than 14 days. I don't know about you but I would rather have heart burn than weak bones or diarrhea. For a few months I payed out of pocket, over $200 per month. I would continue to pay but I can not afford to spend the money I would spend on food on prescription drugs.

Since having Aciphex dropped, I have been prescribed five drugs. Each time I get one, I try it only to find that it does not work as well or at all. Some have given me side effects like very dry mouth, gas, and stomach pain. All I want is to not have bad heart burn. If left untreated I could get esophageal cancer from the daily damage.

Doctors can force the insurance company to cover a drug if deemed necessary. I have seen four different doctors looking for one that would fight for me. All four doctors said they would help me get the right medication but they never did. Two of the doctors would write me a prescription for Aciphex but when the insurance company denied it, the doctor would do nothing. The other two doctors would only write me a prescription for a drug that I am sure they were promoting or getting kickbacks on.

It seems everyone in this country wants all health care run by the government. If you think heath insurance is bad now just think what it would be like if it were run by the Department of Motor Vehicles or some other government department. On a good day, you go to the DMV only to be in great anger upon leaving. I would take a bad phone call to BlueCross, and their bad customer service, any day over a trip to the DMV.

After seeing four different doctors and paying around $1000 I got a 30 day supply. It was not one of the doctors that got it for me but a nurse. She listened to me and did what she could to help. She also had acid reflex and I think she could relate to my situation. It took her a half an hour to convince the insurance company to cover it. That dose not seem like a lot of work but then again I am not a doctor. Why non of the doctors would do it I don't know.

The 30 day supply is close to running out. It will be interesting to see if I can get it refilled. We need insurance reform laws, forcing insurance to be competitive. All it takes is one insurance company to give a decent coverage plan and everyone will switch to it. The bottom line is we need a fix to health insurance.

Personal Essay Draft

Kyle Cherry Analytical Writing

11-18-09

'''Personal Essay ''' When one thinks of insurance, in todays America, thoughts of despair and hate come to mind. Insurance companies have been making record profits but we continue to pay more each year, with less coverage.

In the last two years I have had four different insurance plans from four different companies. Each insurance company had their own quirks and problems except for one. For a span of five months, I was covered by my employer with Microsoft Alumni Heath Insurance. The Microsoft Insurance was provided by United Heath Care, covering almost everything I needed. I got what I, and my employer, was paying for. The three other heath insurance providers have been a pain and covered very little and cost the same.

To all those idiotic within my boarders, listen. It is not heath care that needs reforming, it is the insurance. We need to create laws that make heath insurance competitive, forcing better rates and service. If insurance could be sold across state lines it would remove the monopolistic control within each state. The experience would be more like buying a new car than being robed.

I have sever acid reflex disease. To prevent me from having heart burn throughout the day, I have to take a prescription acid reducer. Not all acid reducers work as well as others and some have harsh side effects. Since the age of 13, I have been taking a medication called Aciphex. Aciphex has worked with no side effects. I continued to use it until a year ago when my insurance dropped it from my plan. They did this without warning.

I went to pickup my prescription at the drug store only to find it was not what I was prescribed. After researching the new drug, I discovered it had common side effects like diarrhea and bone loss. I don't know about you but I would rather have heart burn than diarrhea. For a few months I payed out of pocket, over $200 per month. I would continue to pay but I can not afford to spend the money I would spend on food on prescription drugs.

Everyone in this dumb country wants health care reform. If you think heath insurance is bad now just think what it would be like if it were run by the Department of Motor Vehicles, DMV, or some other government department. On a good day, you go to the DMV only to be in great anger upon leaving. I would take a bad phone call to BlueCross, and their bad customer service, any day over a trip to the DMV.

Since having Aciphex dropped, I have been prescribed five drugs. Each time I get one, I try it only to find that it does not work as well or at all. Some have given me side effects like very dry mouth, gas, and stomach pain. All I want is to not have bad heart burn. If left untreated I could get esophageal cancer from the daily damage.

Self Assessment
'''"What did I learn in this class, and what do I have left to learn?" '''

I learned about conducting research, structuring a paper, and how to try and make a point within my essays. I also learned that vinyl, or Blue Vinyl, is bad.... Awesome movie!

I feel like I need to learn more about sentience structure and how not to be overly wordy, getting to the point.

'''"What did I do well in this class, and what could I have done better?" '''

I did well in participating in my group and getting my portion of our project done. I also did well at showing up and not missing to many classes.

I feel that I could have done better at keeping the group on track and contacting our missing group members each week. We did well most of the time but some weeks we only had three or four people show. This made it hard to get everything done smoothly.

'''"How do I feel prepared, or unprepared, to continue my studies at this point?" '''

I feel somewhat prepared. This class, as well as, the classes I took before this one, have helped me to feel more confident in writing papers. Within the industrial design program, we normally have to write one research paper for each design class.

'''"How did I contribute to the experiences of other students in this class?" '''

I tried to keep my group on track and when I could, help the other members of my group. I also helped edit the Advertising group page by making minor edits.

title: User:Cherrykyle


text:
User talk:Shoy

Please post all messages at w:User talk:Shoy. Shoy 20:15, 14 October 2009 (UTC)

title: User talk:Shoy


text:
User talk:Stevenarntson/group spaces/2009fallanalytical/group 1

Workshop

 * More "stories" examples maybe from AIS
 * Paper contains symmetry of problems and solutions
 * Transport/Supplies/Loans - more critique
 * Add unacknowledged Necessities section
 * Public vs. Private: Fill out
 * Order of sections?
 * Introduction
 * OER - Open Educational Resources

General Discussion
I went ahead and added the extra section "Unacknowledged Needs" and put Housing before Dining, I don't know if any of the other sections needed to be moved or not so I left everything else alone. I didn't know whether I should move the housing solution or not since we haven't really gotten any order for them yet. JenniferBrannon 17:53, 5 November 2009 (UTC)

Is anybody going to do anything on the 'Transportation' or 'Unacknowledged Needs' section? And do we have a conclusion or is it just the 'Solution' section for that? JenniferBrannon 03:20, 18 November 2009 (UTC)

im not sure about what we are doing for the solution. I think we can work on that today in class. I love the introduction whoever did it!Daniellak

Useful Research Links
  SusyG
 * An article from the NYTimes.comwould be good for opportunity. JenniferBrannon 01:05, 18 October 2009 (UTC)
 * Here are some food articles.
 * Here is some information about AIS's parent company, EDMC (which is in turn owned by Goldman Sachs). Click the tabs. Stevenarntson
 * Here are some articles on the topic we were discussing: school districts forced to accept "lowest bidder" food in school lunch programs. Stevenarntson
 * http://checkoutacollege.com/Parents/CostComparisons.aspx
 * http://invw.org/2009/10/would-public-college-education-cost-like-a-private-school-if-tax-limiting-i-1033-passed-in-washington/
 * http://cantwell.senate.gov/news/record.cfm?id=258020
 * http://collegesearch.collegeboard.com/search/CollegeDetail.jsp?collegeId=3388&profileId=2
 * http://collegesearch.collegeboard.com/search/CollegeDetail.jsp?collegeId=3879&BannerID=393&AffiliateID=moreexplore
 * http://collegesearch.collegeboard.com/search/CollegeDetail.jsp?collegeId=4053&profileId=2


text:
User talk:Stevenarntson/group spaces/2009fallanalytical/group 3

Workshop

 * Reliable evidence
 * Toning down emotion/bias
 * Expansion solutions - Symmetry with problems
 * Preventive care
 * Treating symptoms vs. treating disease
 * Alternative Therapies
 * Government subsidies to study alternative therapy
 * Holistic perspective
 * Positive trends to follow?

General Discussion
http://en.wikipedia.org/wiki/Drug_development#cite_ref-0

Studies published in 2003 report an average pre-tax cost of approximately $800 million to bring a new drug (i.e. a drug with a New Chemical Entity) to market.[1][2]

A study published in 2006 estimates that costs vary from around 500 million to 2,000 million dollars depending on the therapy or the developing firm. (They have links from the wiki page for those quotes)

CNN: http://www.cnn.com/2007/HEALTH/conditions/09/26/unapproved.drugs/index.html

'''

Create a solution for each subject '''

Useful Research Links
Are Development Times For Pharmaceuticals Increasing Or Decreasing?

Good article on quality of heath insurance http://content.healthaffairs.org/cgi/reprint/hlthaff.w3.334v1.pdf

NATUROPATHIC MEDICINE INFO http://altmedicine.about.com/od/alternativemedicinebasics/a/Insurance.htm


text:
User talk:Stevenarntson/group spaces/2009fallanalytical/group 4

Workshop

 * Propaganda vs. propaganda
 * In-text citations
 * Good framing intro
 * Transitions between sections
 * Solutions: reliable information rather than partisan squabbling
 * Evening out the voice

General Discussion
As of now our main focus is the impact of the advertising of tobacco, alcohol, and prescription drugs. Also, the impact of the advertising against/ warning about tobacco, alcohol, and prescription drugs.

hey guys,, should I maybe put my stuff from politic to Manipulation part? them maybe should close the politic would be better? Chengfuhsieh

Useful Research Links
http://www.enotes.com/major-acts-congress/federal-cigarette-labeling-advertising-act --Chengfuhsieh 15:29, 21 October 2009 (UTC) Here is a link to TED.com which is a sight that has speeches from the greatest minds in the world on it, and I have yet to watch the lot but there are a few talks on advertising. TED Here is a good report on perscription drug advertising here More on perscription drugs here


text:
User:Saramcmillen

=Analytical Writing=

Personal Essay
Homelessness in Seattle

Sara McMillen

Analytical Writing

2 December 2009

For nineteen years of my life I lived in a small town in Montana where the people are few and far between, cows and deer are everywhere, and the hills are rolling and that is all that is rollin’. My town was nearly fifty miles from the interstate. Homelessness was not an issue at all in the town I grew up. If I say a hitch hiker I just assumed that he was very lost and that some truck driver would stop and give him a ride to another small town in the middle of nowhere North Dakota or even further if they got lucky. Since my town was so small no one was really allowed to be homeless. Everyone pitched in when there was tragedy, like an illness, medical bills, or even if a house burnt down. Small town folks love getting together to have a good time and if they can do it to help someone else they will do it every Friday and Saturday night.

Moving to a city like Seattle, my eyes have been opened up to a brand new way of life. There are so many homeless people everywhere around the city. There are those “bad parts of town” but I believe the homeless “live” where they end up and wherever there are resources to help them. When I lived in Montana I volunteered all the time. I helped teach younger kids basic skills they will need in the future and I helped at a second hand store. Now that I am in Seattle and I see that there is so much to do I would really like to get involved. I found some more interesting facts about the homelessness in Seattle and a whole bunch of ways to help those in need.

Seattle locals participate in a One Night Count. The one night count is to document the nature of homeless people and to build public awareness. Shelters take a count of people that they house and soup kitchens also help out in keeping track of the people they help out by providing food. Not only are the homeless kept track of in Seattle, but the count happens in the surrounding cities.

If you would like to help there are many ways to participate. You can participate in the housing for homeless by going to Olympia and talking with the legislature about what should happen and they are the ones that can really make changes and make things happen.

In order to help end homelessness in King County and the surrounding areas you can become a member or a friend of the Seattle/King County Coalition for homelessness. These are the people that are out there making the counts in the One Night Count and are participating hands-on to help out in the community. Members of this coalition also help with back-to-school. They help provide school supplies for kids in need. The membership is open to anyone especially those who specialize in social work, emergency, transportation, and housing.

Contributions can be made to help fund supplies for homeless children that are going to school. Each student is given a backpack filled with supplies that are appropriate for their age and school. The backpacks and school supplies are taken to the shelters and transitional housing programs to help the kids get a jump start on the new school year. This is mostly funded by some of the biggest corporation in the Seattle area.

The City of Seattle tries to serve homeless people by providing them an enhanced shelter to live in. Not only does this give the people a place to sleep, but it helps them get on their feet again with a job and food. When an address they can call their home, they can get jobs with no worries of being turned down for not having a permanent address. These shelters also offer medical help and education. This organization has been going for the last four years and they hope to end homelessness with a ten year plan. These places even go as far as to offer drug and alcohol abuse counseling.

It is very hard for low income families to move to a new country. A lot of people move to America to start new but have a hard time getting started and sometime end up homeless because of their language and culture barrier. There are support groups around Seattle that help with just that. These people help the new comers adjust to the new language and culture but still keep some of their traditions. The language barrier is a very big problem when it comes to the parents trying to communicate with school faculty and staff. There are people there to help translate and figure out certain situations. More than 500 immigrants seek help from the Immigrant and Refugee Family Support Program each year. This program has been up and running since 2006. The City of Seattle provides more than $300,000 each year to the non-profit organizations like the immigrant refugee program.

A lot of youth try to escape their family life for many reasons and end up on the streets. A lot of the time the teens have to leave because their family won’t accept that they are gay, lesbian, transgender or bisexual. The streets are much more dangerous to them than their homes may have been. A lot of teens are sexually abuses or harassed, exposed to violence, and even rejected by their family after they leave home. The volunteers that help the younger generation of homeless people try to keep the kids going to school to get their education and even help them get a job.

There are so many different things we as a community in Seattle can do to help the homeless. It is very close to the Christmas holiday and everywhere someone is out there trying to help. When you are out shopping and thinking about everyone close to you, stop to drop a few quarters into someone’s hand. He or she will appreciate it.

Works Cited "Emergency Services & Ending Homelessness - Seattle Human Services Department." Seattle.gov – the official site of the City of Seattle - Home Page. Web. 29 Nov. 2009. . Seattle/King County Coalition for the Homeless - Home. Web. 29 Nov. 2009. .

title: User:Saramcmillen


text:
User talk:Stephenmhogan

Hello Former Student!

I'm writing to you because you took a class from me in the past few years at the Art Institute. As of Spring, 2010, I'll not be teaching further classes at AIS for the foreseeable future. (We're parting ways on good terms!) Until now, you've been able to reach my Wikiversity educational resources from my website, but I've decided to delete that link. You can still reach all of those materials here.

If you're interested in what I'm up to in the future (which will include an album in 2010 and a novel in 2011) you can friend my facebook page or drop me an email at info@stevenarntson.info and you'll receive a periodic update about performances, classes, and publications.

If you know any current or former students of mine who might be interested in any of this, please forward this information if you have a moment.

I hope all is well for you. Best! Stevenarntson

 Hello Stephenmhogan, and welcome to Wikiversity! If you need help, feel free to visit my talk page, or contact us and ask questions. After you leave a comment on a talk page, remember to sign and date; it helps everyone follow the threads of the discussion. The signature icon in the edit window makes it simple. To get started, you may

 * Take a guided tour and learn to edit.
 * Visit a (kind of) random project.
 * Browse Wikiversity, or visit a portal corresponding to your educational level: pre-school, primary, secondary, tertiary, non-formal education.
 * Find out about research activities on Wikiversity.

 * Read an introduction for teachers and find out how to write an educational resource for Wikiversity.
 * Give feedback about your initial observations
 * Discuss Wikiversity issues or ask questions at the colloquium.
 * Chat with other Wikiversitans on #wikiversity-en.

And don't forget to explore Wikiversity with the links to your left. Be bold to contribute and to experiment with the sandbox or your userpage, and see you around Wikiversity! --AFriedman 21:49, 14 October 2009 (UTC)

 Hi! Our name is Vicky-Verity. We are twins and are Wikiversity mascots. We think Wikiversity is a great place to learn and make friends (when we aren't sleeping). Leave us a message!

Personal Essay
Very strong start on this. I can see the reasoning behind giving the "Cliff's Notes" version, but that said I would be interested in more about some of those early decisions that started the prescriptions rolling. Then some of your more thematic material can be worked into the story as you are telling it.
 * Great start! Stevenarntson

title: User talk:Stephenmhogan


text:
User talk:Saramcmillen

Hello Former Student!

I'm writing to you because you took a class from me in the past few years at the Art Institute. As of Spring, 2010, I'll not be teaching further classes at AIS for the foreseeable future. (We're parting ways on good terms!) Until now, you've been able to reach my Wikiversity educational resources from my website, but I've decided to delete that link. You can still reach all of those materials here.

If you're interested in what I'm up to in the future (which will include an album in 2010 and a novel in 2011) you can friend my facebook page or drop me an email at info@stevenarntson.info and you'll receive a periodic update about performances, classes, and publications.

If you know any current or former students of mine who might be interested in any of this, please forward this information if you have a moment.

I hope all is well for you.
 * Best! Stevenarntson

 Hello Saramcmillen, and welcome to Wikiversity! If you need help, feel free to visit my talk page, or contact us and ask questions. After you leave a comment on a talk page, remember to sign and date; it helps everyone follow the threads of the discussion. The signature icon in the edit window makes it simple. To get started, you may

 * Take a guided tour and learn to edit.
 * Visit a (kind of) random project.
 * Browse Wikiversity, or visit a portal corresponding to your educational level: pre-school, primary, secondary, tertiary, non-formal education.
 * Find out about research activities on Wikiversity.

 * Read an introduction for teachers and find out how to write an educational resource for Wikiversity.
 * Give feedback about your initial observations
 * Discuss Wikiversity issues or ask questions at the colloquium.
 * Chat with other Wikiversitans on #wikiversity-en.

And don't forget to explore Wikiversity with the links to your left. Be bold to contribute and to experiment with the sandbox or your userpage, and see you around Wikiversity! --AFriedman 21:50, 14 October 2009 (UTC)

 Hi! My name is WikiversityJack. I am a pumpkin and a Wikiversity mascot. My aunt told me that fun + learning = Wikiversity. Let me know if I can help you out.

Personal Essay
Please post your personal essay, and let me know with an email--I'll take a look at it and offer any suggestions I might have.
 * Best, Stevenarntson

Personal Essay Draft
Looking at what's here so far (via email), I think there's some great information. I'd like to see it lean in a more personal direction as you continue--your own thoughts, opinions, and experiences will enliven the good data you've collected.
 * Best, Stevenarntson

Personal Essay Comments
This is a good draft. I'd like to see a section added at the bottom that returns to your observations at the top--looking at issues surrounding homelessness as the difference between small town and city. In a small town people don't get "lost" as they do in a big city (that is, overlooked and forgotten). That can happen in larger places, but people in trouble also gravitate to larger cities because there are more services to help them. I'd like to see the essay return to your more personal reflections as someone who began in a small town and ended up in Seattle. Is there anything that Seattle can learn from a small town about civic-mindedness? Any important differences that should be considered when setting out to become involved with homelessness? Best, Stevenarntson

This is really informative and a great essay. It did end a little more aloof than it started. If you could continue to tie in the small town throughout the paper I think that would really help it flow more smoothly, I had all but forgotten it was a personal essay by the end.

It really came off as more a public service announcement that was recuiting help for the programs that support the homeless at the end. Other than that it was great.JenniferBrannon

title: User talk:Saramcmillen


text:
User talk:Cherrykyle

Hello Former Student!

I'm writing to you because you took a class from me in the past few years at the Art Institute. As of Spring, 2010, I'll not be teaching further classes at AIS for the foreseeable future. (We're parting ways on good terms!) Until now, you've been able to reach my Wikiversity educational resources from my website, but I've decided to delete that link. You can still reach all of those materials here.

If you're interested in what I'm up to in the future (which will include an album in 2010 and a novel in 2011) you can friend my facebook page or drop me an email at info@stevenarntson.info and you'll receive a periodic update about performances, classes, and publications.

If you know any current or former students of mine who might be interested in any of this, please forward this information if you have a moment.

I hope all is well for you. Best! Stevenarntson

 Hello Cherrykyle, and welcome to Wikiversity! If you need help, feel free to visit my talk page, or contact us and ask questions. After you leave a comment on a talk page, remember to sign and date; it helps everyone follow the threads of the discussion. The signature icon in the edit window makes it simple. To get started, you may

 * Take a guided tour and learn to edit.
 * Visit a (kind of) random project.
 * Browse Wikiversity, or visit a portal corresponding to your educational level: pre-school, primary, secondary, tertiary, non-formal education.
 * Find out about research activities on Wikiversity.

 * Read an introduction for teachers and find out how to write an educational resource for Wikiversity.
 * Give feedback about your initial observations
 * Discuss Wikiversity issues or ask questions at the colloquium.
 * Chat with other Wikiversitans on #wikiversity-en.

And don't forget to explore Wikiversity with the links to your left. Be bold to contribute and to experiment with the sandbox or your userpage, and see you around Wikiversity! --AFriedman 21:50, 14 October 2009 (UTC)

 Woof! My name is Jack Russell. I am a dog and a Wikiversity mascot. I am pretty new around Wikiversity. Perhaps we can learn together! Tail wag...

Personal Essay
Please post your personal essay, and let me know with an email--I'll take a look at it and offer any suggestions I might have.
 * Best, Stevenarntson

title: User talk:Cherrykyle


text:
User:Margarita Sanchez

=Analytical Writing=

Personal Essay
My Essay:

"Would you like paper or plastic?" Its a simple question we hear sometimes, but recently not as much. I remember at Fred Meyer's, Safeway, and mini marts would often ask that question to their costumers, but I guess people would forget or just simply not bother saying. Going green is a big thing, a very expensive process and a custom to change into recycling. Now days, people recycle as much as they can, when they can, but how much are we really doing and how much can we change to help each other and earth. I believe that asking just a simple question and making the right decision of throwing away items into the right container can make a difference in a little way now, but a bigger help in the long run.

Ever since I've been in this class and researched about our topic, I realized so much of plastic, recycling and how much people consume and their ways of recycling. During the first week of this quarter I went down to the deli at the pier and when it was time to give me my order, the girl asked if I would like a plastic bag or a paper bag. I was thinking about it and I laughed and said "paper please, thanks for asking." And ever since then I've been paying attention to who asks me. But its been only a few times since then, and when I have the choice to say if i want paper or plastic, I do say, "paper please!"

Now with recycling plastic bottles, I've been seeing the blue recycling bins since high school, and I have been doing my part in tossing my empty bottles in there. When I went back to Alaska for this Thanksgiving break, I notice my mom had lots of empty plastic bottles and I asked her why, she told me she resuses them. I thought right away about bacteria and mold. I told her to throw them away if they were a day or two old. And she did and then I threw away also my bottles that I found in my room, I sure didn't want no one to drink from those old bottles. Besides recycling plastic bottles I also recycle paper at school and fabric, and at my house here in Renton, we recycle in the bins for trash, yard, and paper with glass and plastic and other materials you would recycle at home. i think by doing simple things at home that don't take much of my time or effort makes recycling easier for all and it feels good doing your part in making this planet greener.

Starting from not knowing what was trash island, to knowing how it got built has made an impacted in my life and has changed my contribute to recycling. I think that my efforts in recycling, reusing, and reducing are making a difference. Also by reminding my family and friends to do the same we are helping out in the communities. Hopefully, one day when i get my own house I can have a greener home, though it might be pricey, I can make a difference there as well. And now that we saw the video on vinyl, I know now what to stay away from and not have so I wont harm myself and my surroundings. In the future I can only hope and help out as much as I can to making this land a better living for all. Reducing, reusing, and recycling has now become officially permanent in my life.

Self Assessment
I believe that i learned how to research, express my self, and examine writing and readings and videos like documentaries. To take in, and observe how much information and reasonings and research there is out there to create writing. I think i still have left to learn is communication and timing. I think i did well in listening and learning how other people think and how they look at things and for me as well. i think i could've done better in my group as communicating with one another and making smooth transitions in our paper. To prepare myself more my studies more I think I should give myself more time and d things on time with giving myself time for longer periods of research and reflect on that. Contributing in the class was fun and I did learn about other peoples reactions and thoughts. I just want to say thank you for having a good time in class, for seeing the great videos, because I do feel I learned a lot and thank you also for not requiring to buy a textbook!

title: User:Margarita Sanchez


text:
User talk:Margarita Sanchez

Hello Former Student!

I'm writing to you because you took a class from me in the past few years at the Art Institute. As of Spring, 2010, I'll not be teaching further classes at AIS for the foreseeable future. (We're parting ways on good terms!) Until now, you've been able to reach my Wikiversity educational resources from my website, but I've decided to delete that link. You can still reach all of those materials here.

If you're interested in what I'm up to in the future (which will include an album in 2010 and a novel in 2011) you can friend my facebook page or drop me an email at info@stevenarntson.info and you'll receive a periodic update about performances, classes, and publications.

If you know any current or former students of mine who might be interested in any of this, please forward this information if you have a moment.

I hope all is well for you.
 * Best! Stevenarntson

 Hello Margarita Sanchez, and welcome to Wikiversity! If you need help, feel free to visit my talk page, or contact us and ask questions. After you leave a comment on a talk page, remember to sign and date; it helps everyone follow the threads of the discussion. The signature icon in the edit window makes it simple. To get started, you may

 * Take a guided tour and learn to edit.
 * Visit a (kind of) random project.
 * Browse Wikiversity, or visit a portal corresponding to your educational level: pre-school, primary, secondary, tertiary, non-formal education.
 * Find out about research activities on Wikiversity.

 * Read an introduction for teachers and find out how to write an educational resource for Wikiversity.
 * Give feedback about your initial observations
 * Discuss Wikiversity issues or ask questions at the colloquium.
 * Chat with other Wikiversitans on #wikiversity-en.

And don't forget to explore Wikiversity with the links to your left. Be bold to contribute and to experiment with the sandbox or your userpage, and see you around Wikiversity! --AFriedman 21:51, 14 October 2009 (UTC)

 Hi! Our name is Vicky-Verity. We are twins and are Wikiversity mascots. We think Wikiversity is a great place to learn and make friends (when we aren't sleeping). Leave us a message!

Personal Essay
There's not enough here yet for me to give a good critique. After you've posted a draft, send me an email, and I'll take a look at it.
 * Best, Stevenarntson

title: User talk:Margarita Sanchez


text:
User talk:Kelcieh

Hello Former Student!

I'm writing to you because you took a class from me in the past few years at the Art Institute. As of Spring, 2010, I'll not be teaching further classes at AIS for the foreseeable future. (We're parting ways on good terms!) Until now, you've been able to reach my Wikiversity educational resources from my website, but I've decided to delete that link. You can still reach all of those materials here.

If you're interested in what I'm up to in the future (which will include an album in 2010 and a novel in 2011) you can friend my facebook page or drop me an email at info@stevenarntson.info and you'll receive a periodic update about performances, classes, and publications.

If you know any current or former students of mine who might be interested in any of this, please forward this information if you have a moment.

I hope all is well for you. Best! Stevenarntson

 Hello Kelcieh, and welcome to Wikiversity! If you need help, feel free to visit my talk page, or contact us and ask questions. After you leave a comment on a talk page, remember to sign and date; it helps everyone follow the threads of the discussion. The signature icon in the edit window makes it simple. To get started, you may

 * Take a guided tour and learn to edit.
 * Visit a (kind of) random project.
 * Browse Wikiversity, or visit a portal corresponding to your educational level: pre-school, primary, secondary, tertiary, non-formal education.
 * Find out about research activities on Wikiversity.

 * Read an introduction for teachers and find out how to write an educational resource for Wikiversity.
 * Give feedback about your initial observations
 * Discuss Wikiversity issues or ask questions at the colloquium.
 * Chat with other Wikiversitans on #wikiversity-en.

And don't forget to explore Wikiversity with the links to your left. Be bold to contribute and to experiment with the sandbox or your userpage, and see you around Wikiversity! --AFriedman 21:51, 14 October 2009 (UTC)

 Woof! My name is Jack Russell. I am a dog and a Wikiversity mascot. I am pretty new around Wikiversity. Perhaps we can learn together! Tail wag...

Personal Essay
Please post your personal essay, and let me know with an email--I'll take a look at it and offer any suggestions I might have.
 * Best, Stevenarntson

title: User talk:Kelcieh


text:
User:EricD

=Analytical Writing=

Personal Essay
I remember the first time I saw a homeless person. It was 2002 and I was in Seattle, WA. I was in the back seat of my father’s car, and we were driving past the highway. Underneath the overpass was a homeless man. At the time, I was astonished. Where I grew up, no one lived in the streets. Being from a small town, everyone knows everybody and that meant there was always a place to stay. What made this rugged man so astonishing to me was seeing reality at its worst. It was my first time in a big city at the time and everything I saw that day was memorizing, but what topped it off was seeing a homeless person. To me, a homeless person was only seen on TV and a fabrication to the real world. No one was really truly homeless. How could our country be so cruel, right? After living in Seattle, and seeing homelessness every day, it breaks my heart and puts thoughts among questions in my mind. Questions like, how’d this person or that person become homeless? How come no one’s helping them? Where do they sleep? How do they eat, use the bathroom, and how could they escape from being homeless? These questions wandered through my head every time I saw a man sleeping under a bridge, or a woman asking for change in front of a McDonalds. Most people would assume they put themselves there, and they deserve to be there. I know many people who think that they’re just lazy people that didn’t want to get a job, or that all of them are junkies and waste all of their money on booze or their next fix. Close minded conclusions are what make life harder for people who do suffer homelessness. I try my best not to assume that every homeless person is an addict. I try to think about people who lose their mortgage; people who lose their families, people who can’t pay their medical bills or pay their debts off, the people who can’t get into housing because of mistakes they’ve made that make it impossible for them to receive some sort of second chance. I read once that it’s legal to deny sex offenders housing. What some people don’t know is how easy it is to become a sex offender. All you have to do is urinate on the side of the road at night in the middle of nowhere, or walk past your window naked in your own home. Not everyone who is a sex offender is a child molester. Not everyone who is a felon is going to steal your car, or deal drugs in their apartment. In fact, I believe that most people, who do do those things, have little or no convictions with the law. Some of these people who live on the streets, living in the streets, it makes it hard for a sex offender to receive help with his/her mental issues, or someone who stole once before, not to steal again just to survive the day, or deal drugs just to make some money to feed yourself and/or your family. Homelessness is slowly draining the world of civil people. I wonder what it would take to make sure that no one is left behind. TO make sure that people can get a job, a place to live, and be able to pay their bills, and get the help they need. Would it take free healthcare? Or how about a bill to pass that requires a certain percentage of government tax be dedicated to keeping people off the streets and into homes and working? Maybe passing a law requiring everyone in America to do some sort of volunteer work and/or volunteer pay out? I don’t really know how to end the suffering of millions of people from freezing winters and dangerous streets. What I do know is that something needs to change, and I’ll try and do what I can, to help make that change. Even if it’s just one person at a time.

Self Assessment
There were a lot of things that I could have improved in this class. I didn't really spend too much time on research or really the analytical part of the class. I loved being in class and I learned alot from it. It's just, I had a hard time getting into the whole writing thing. With work and other classes, it was hard to concentrate.

Things that I would change in this class are slim. I enjoyed being in class and looked forward to talk about the things we discussed and watched. I liked watching the documentaries. It was good stuff.

I say, keep the class the same.

EricD

title: User:EricD


text: Animal-assisted therapy

title: Animal-assisted therapy


text:
User:Gscottrobinson

This is the beginning of a wikiuniversity experiment.

title: User:Gscottrobinson


text:
User:Mjquinn id

Topics
Wikiversity topics of interest:
 * Tennis

title: User:Mjquinn id


text:
Mapping my world/Description

Summary:

Students use topographic maps of local areas determine contour intervals, gradients, and latitude/ longitude. Students then use latitude/ longitude to plot location on Google Earth.

Students will measure distances using graphic and fractional scales, interpret map sysmbols, and draw a profile of a topographic map. Grade/Level: 9 Time Frame:

1 class period -55 minutes Subject(s): Advanced Earth Science Topic(s):

topographic maps and remote sensing

title: Mapping my world/Description


text:
Mapping my world/Objectives

Standards: CA- California K-12 Academic Content Standards • Subject : Science • Grade : Grades Nine Through Twelve Standards that all students are expected to achieve in the course of their studies are unmarked. Standards that all students should have the opportunity to learn are marked with an asterisk (*). • Area : Investigation and Experimentation • Sub-Strand 1: Scientific progress is made by asking meaningful questions and conducting careful investigations. As a basis for understanding this concept and addressing the content in the other four strands, students should develop their own questions and perform investigations. Students will: Standard h: Read and interpret topographic and geologic maps. Knowledge and Skills:

Process Skills

interpret scientific illustrations, use SI and English measurements, communicate and analyze data

title: Mapping my world/Objectives


text:
Talk:Python Concepts

Merger
I have merged/redirected this page to its related topic. All course related material should be further developed under the topic of python itself.

Download Python
2. finding a way to download Python so beginners can use codes posted here.
 * It may be helpful to point people towards the pre-compiled binaries on the PSF website. --I8086 (discuss • contribs) 02:10, 19 November 2014 (UTC)

 * I am all for links to downloads. I hope this site isn't trying to install stuff.  If so, you need to warn the readers.--guyvan52 (discuss • contribs) 17:24, 21 November 2014 (UTC)

 * Also, on MATLAB I am experimenting with a resource that "shadows" the site's tutorial by providing a short summary of each tutorial session. Students who need a refresher can skim through this page to see what each tutorial is about.  I have no evidence as to whether this is useful to students, yet.  --guyvan52 (discuss • contribs) 17:28, 21 November 2014 (UTC)

 * I'll definitely warn about the downloads. MATLAB... I've never used that software before though I've heard people mention it. GNU has software that is similiar to MATLAB, right? --I8086 (discuss • contribs) 18:53, 21 November 2014 (UTC)

The GNU clone to MatLab is GNU Octave, which lacks a GUI and has other differences, especially when dealing with symbolic manipulation. I described the two systems at MATLAB if you are interested. I am not an expert at MATLAB (or any computer language for that matter), but use it because it is what the engineers use at our small branch campus of Wright State University.--guyvan52 (discuss • contribs) 20:00, 21 November 2014 (UTC)
 * I'll check it out. --I8086 (discuss • contribs) 13:48, 24 November 2014 (UTC)

Developing Lessons.
On a side note, I think that some of the lesson should be split up into new lessons, like creating a lesson entirely for strings and lists for example. I think we should also beef up the content in the resource mainly adding more complex things about parsers and GUI's, you know, more real life stuff used in the everyday world. --I8086 (discuss • contribs) 17:08, 24 November 2014 (UTC)

 * Don't hesitate to change it. You seem to be by far the most active python editor at the moment.  --guyvan52 (discuss • contribs) 20:09, 24 November 2014 (UTC)

Python Projects
A little something I thought up, what about a separate resource for setting up Python related projects. This could allow Wikiverstians to come together and create useful tools and programs, while learning Python and team-building skills at the same. It isn't something I would necessary implement right now, but it maybe a good idea in the future. --I8086 (discuss • contribs) 22:25, 5 December 2014 (UTC)

PythonLearn
Have those of you interested in Python seen http://www.pythonlearn.com/ ? That resource is all CC-BY-SA content available to everyone. It includes textbook, videos, etc. Something worth investigating. -- Dave Braunschweig (discuss • contribs) 01:51, 7 February 2015 (UTC)

 * I believe the site was used as a reference (unless I'm wrong) and if I threw my opinion in, one of the top sites for learning Python is the Python Tutorial, although it isn't very in depth in some areas and it can leave you say "what?" sometimes. --I8086 (discuss • contribs) 16:18, 9 February 2015 (UTC)

Deletion of proposal to place Python on campus computers
I removed the proposal to place Python on campus computers and will remove the link. In the unlikely event you want to keep it, go to this page --Guy vandegrift (discuss • contribs) 12:53, 3 March 2015 (UTC)

 * You might want to keep the page, as per this discussion. --I8086 (discuss • contribs) 18:12, 14 April 2015 (UTC)

 * Old post never mind.... --I8086 (discuss • contribs) 18:20, 14 April 2015 (UTC)

Having trouble with file management and DOS commands
As a novice, I see a need for more instructions on running codes. Wikibooks has something at Python_Programming/Creating_Python_Programs, but it is barely enough. Also, if a collection of simple sample codes came with the Python download, I cannot find it.--Guy vandegrift (discuss • contribs) 01:57, 14 April 2015 (UTC)

 * What part of the code do you need help with, files or/and the prompt? As for your second question, I'm not aware of any sample code that comes with Python. I know there's turtle demos under the Help menu in IDLE, but it shows you little graphics demos and gives pretty advanced source code. Now that it's come to my attention, it might be useful to keep a collection of Python examples.  --I8086 (discuss • contribs) 18:04, 14 April 2015 (UTC)

Add overwiew of the python terminal, python programs, and the python cli.
A current issue with this course is that it does not explain to begginers what a python terminal is, nor does it explain how to run a python file or how to run modules using python. This is something very important for the average begginer, as an understanding of *how* code is run influence how likely they are to grasp the code itself.

For example, in the tutorials the python command line is used, for example:

it is, however, never explained to new programmers how to access this, or what the difference is between that and full python files. -- RuboGubo (discuss • contribs) 15:06, 17 April 2022 (UTC)

 * @RuboGubo: Be bold! -- Dave Braunschweig (discuss • contribs) 14:46, 18 April 2022 (UTC)

Priorities for improving this course - June 2022
This course needs some TLC, but there are a lot of things that need doing and it's best we prioritize certain improvements over others. Here is a basic plan for getting Python Concepts up to par (and eventually beyond), listed in order so that 1 should be done first and we can work down the list. This is of course flexible but at least imo the order follows a logical path forward for this course. I'll make some edits myself but help will be appreciated.

 * 1) Revamp articles for installation and basic usage. - There's no point of the rest of the course if they can't run the code they're learning. We'll improve instructions for using the terminal, running python files, and so on. Troubleshooting sections would also be helpful.
 * 2) Bring existing pages to "full completion" status. - Before we can add any new articles, we should get the existing ones more-or-less done unless we decide one or two should be cut entirely.
 * 3) Reorganize the categories into clearly-defined learning modules. - The pages here seem to be somewhat organized by topic rather than in syllabus order. We shouldn't abandon that, but it's probably a good thing to build their knowledge upward in a more rounded fashion instead of "learn every single data type then every single statement".
 * 4) Fill in the gaps. - There are a few extra articles we could insert in the middle of the course, like a lesson on effectively using built-in and third-party modules, making multi-file python projects (__init__ and __main__ and whatnot), and perhaps one on pytest. Sky's the limit!
 * 5) Materials for learning by experience. - Programming can hardly be taught in any textbook or lecture. Sure, you can learn what each common function does, but the problem-solving needed can only be learned by doing projects yourself. So we should make some projects for this course complete with tips, hints, and sample solutions. There could be ones all about solving a narrow-scoped programming problem from "starting" code (perhaps in some cases even fixing broken code so it works), and other ones where they are only given a goal and freedom to accomplish it as they see fit. There should be a lot of these exercises. Ideally at least one per lecture and a few cumulative ones at the end of each module. This is by far the longest step which is why it is last!

In general, steps 4 and 5 can be a tandem effort but steps 1, 2 and 3 need to be done in that order. Let me know what you think of this plan. Hjk321 (discuss • contribs) 16:45, 24 June 2022 (UTC)

 * @Hjk321: See Programming Challenges for ideas. There are also a variety of programming tasks included in Programming Fundamentals and Python Programming. Programming Fundamentals is a live real-world course with 50+ summer students and 100+ fall and spring students. I don't use Python Programming as much anymore. -- Dave Braunschweig (discuss • contribs) 02:25, 25 June 2022 (UTC)

title: Talk:Python Concepts


text:
Linux/Installation/Ubuntu

Step by Step Guide to Installing Ubuntu

 * 1) Get a LiveCD.
 * 2) Visit the download page or check your local ISP mirror.
 * 3) If you are using a desktop pc select the default distribution (Ubuntu 10.10 Maverick Meerkat) and select the closest download location to you. The closer the location, the faster you will be able to download the cd image. If you are unable to download full cd images you can order ubuntu online for free here
 * 4) Burn the iso image to a cdrom using your favorite cd burning software.
 * 5) Reboot your computer and insert the ubuntu cd. Make sure your BIOS is set to read from optical drives.
 * 6) Choose the default menu option (boot into live desktop).
 * 7) Wait for Ubuntu to load fully
 * 8) Explore Ubuntu!
 * 9) When you are ready, double click the install icon on the desktop
 * 10) Follow the prompts. Information about partitioning can be found here
 * 11) When you have entered all the information you need, grab a coffee and wait for Ubuntu to install fully.
 * 12) Reboot your computer.
 * 13) By default the GRUB bootloader selects Ubuntu as the operating system to boot into after approximately 10 seconds.
 * 14) Log in and enjoy!

title: Linux/Installation/Ubuntu


text:
Talk:Linux/Installation/Ubuntu

Page Created
I have created this page and added the bare bones to it. If I have time I will look for the page explaining partitioning or I will create one myself later. Either way I hope for this page to serve as one of the best reference points for installing ubuntu for the average joe. Good Luck! Lysander89 05:55, 15 October 2009 (UTC)

title: Talk:Linux/Installation/Ubuntu


text:
User talk:Fraserbrearley

Hello Former Student!

I'm writing to you because you took a class from me in the past few years at the Art Institute. As of Spring, 2010, I'll not be teaching further classes at AIS for the foreseeable future. (We're parting ways on good terms!) Until now, you've been able to reach my Wikiversity educational resources from my website, but I've decided to delete that link. You can still reach all of those materials here.

If you're interested in what I'm up to in the future (which will include an album in 2010 and a novel in 2011) you can friend my facebook page or drop me an email at info@stevenarntson.info and you'll receive a periodic update about performances, classes, and publications.

If you know any current or former students of mine who might be interested in any of this, please forward this information if you have a moment.

I hope all is well for you. Best! Stevenarntson

 Hello Fraserbrearley, and welcome to Wikiversity! If you need help, feel free to visit my talk page, or contact us and ask questions. After you leave a comment on a talk page, remember to sign and date; it helps everyone follow the threads of the discussion. The signature icon in the edit window makes it simple. To get started, you may

 * Take a guided tour and learn to edit.
 * Visit a (kind of) random project.
 * Browse Wikiversity, or visit a portal corresponding to your educational level: pre-school, primary, secondary, tertiary, non-formal education.
 * Find out about research activities on Wikiversity.

 * Read an introduction for teachers and find out how to write an educational resource for Wikiversity.
 * Give feedback about your initial observations
 * Discuss Wikiversity issues or ask questions at the colloquium.
 * Chat with other Wikiversitans on #wikiversity-en.

And don't forget to explore Wikiversity with the links to your left. Be bold to contribute and to experiment with the sandbox or your userpage, and see you around Wikiversity! --Mu301Bot 07:18, 15 October 2009 (UTC)

Feel free to leave a message on my talk page if you have any questions or need help. --mikeu talk 07:18, 15 October 2009 (UTC)

Personal Essay
Some great impulses in this one so far. In revising, I think it would be interesting to make the piece chronological, in terms of your own life. Start with wanting plastic toys when you were a kid, and end with now: using plastic for your industry. Then in terms of thinking about solutions, consider both: adults, who use plastic for work, and kids who are given it. Best, Stevenarntson

Arts in Nature Fest
http://www.naturec.org/festival.htm

title: User talk:Fraserbrearley


text:
User talk:VeronicaLeeG

Hello Former Student!

I'm writing to you because you took a class from me in the past few years at the Art Institute. As of Spring, 2010, I'll not be teaching further classes at AIS for the foreseeable future. (We're parting ways on good terms!) Until now, you've been able to reach my Wikiversity educational resources from my website, but I've decided to delete that link. You can still reach all of those materials here.

If you're interested in what I'm up to in the future (which will include an album in 2010 and a novel in 2011) you can friend my facebook page or drop me an email at info@stevenarntson.info and you'll receive a periodic update about performances, classes, and publications.

If you know any current or former students of mine who might be interested in any of this, please forward this information if you have a moment.

I hope all is well for you. Best! Stevenarntson

 Hello VeronicaLeeG, and welcome to Wikiversity! If you need help, feel free to visit my talk page, or contact us and ask questions. After you leave a comment on a talk page, remember to sign and date; it helps everyone follow the threads of the discussion. The signature icon in the edit window makes it simple. To get started, you may

 * Take a guided tour and learn to edit.
 * Visit a (kind of) random project.
 * Browse Wikiversity, or visit a portal corresponding to your educational level: pre-school, primary, secondary, tertiary, non-formal education.
 * Find out about research activities on Wikiversity.

 * Read an introduction for teachers and find out how to write an educational resource for Wikiversity.
 * Give feedback about your initial observations
 * Discuss Wikiversity issues or ask questions at the colloquium.
 * Chat with other Wikiversitans on #wikiversity-en.

And don't forget to explore Wikiversity with the links to your left. Be bold to contribute and to experiment with the sandbox or your userpage, and see you around Wikiversity! --Mu301Bot 07:18, 15 October 2009 (UTC)

Feel free to leave a message on my talk page if you have any questions or need help. --mikeu talk 07:18, 15 October 2009 (UTC)

Personal Essay
This is a good start in giving a general overview, but the question it currently ends with should be answered. This will force the paper to get into some useful specifics.
 * Best, Stevenarntson

title: User talk:VeronicaLeeG


text:
User talk:Jokestress

 Hello Jokestress, and welcome to Wikiversity! If you need help, feel free to visit my talk page, or contact us and ask questions. After you leave a comment on a talk page, remember to sign and date; it helps everyone follow the threads of the discussion. The signature icon in the edit window makes it simple. To get started, you may

 * Take a guided tour and learn to edit.
 * Visit a (kind of) random project.
 * Browse Wikiversity, or visit a portal corresponding to your educational level: pre-school, primary, secondary, tertiary, non-formal education.
 * Find out about research activities on Wikiversity.

 * Read an introduction for teachers and find out how to write an educational resource for Wikiversity.
 * Give feedback about your initial observations
 * Discuss Wikiversity issues or ask questions at the colloquium.
 * Chat with other Wikiversitans on #wikiversity-en.

And don't forget to explore Wikiversity with the links to your left. Be bold to contribute and to experiment with the sandbox or your userpage, and see you around Wikiversity! --Mu301Bot 07:18, 15 October 2009 (UTC)

Feel free to leave a message on my talk page if you have any questions or need help. --mikeu talk 07:18, 15 October 2009 (UTC)

title: User talk:Jokestress


text:
User:Hey Hank/Punctuation lessons

Hey Hank says

title: User:Hey Hank/Punctuation lessons


text: File:2.C.Optical Sensor.pdf

title: File:2.C.Optical Sensor.pdf


text: File:3.D.Magnetic Sensor.pdf

title: File:3.D.Magnetic Sensor.pdf


text:
User:Egm6321.f09.team4/HW4

 See further comments in google doc for Team 4. Egm6321.f09 21:03, 23 November 2009 (UTC)

= Homework #4: Team 4 =

Problem #1:
(Lecture 19-1)

 * Given :

 * The Legendre Equation, with $$n=0$$ (see King et. al., pg. 31)

 * $$ \begin{align}

F\left(x,y,y',y\right) = \left(1-x^{2}\right)y - 2xy' = 0 \end{align} $$

 * and one solution to the homogenous equation:

 * $$ \begin{align}

u_{1}\left(x\right) = 1 \end{align} $$

 * Find :

 * $$u_{2}\left(x\right)$$, the second homogenous solution, using reduction of order method #2 (undet. factors).

 * Solution :

 * From Lecture 17-4, Equation #2:

 * $$ \begin{align}

u_{2} = u_{1}\left(x\right) \int_{x} \left[ \left(u_{1} \left( t\right)\right)^{-2} \ \text{exp} \left\{ -\int_{t} a_{1} \left( s \right)ds \right\} \right] dt \end{align} $$

 * To get $$a_{1}\left(x\right)$$, we simply take the coefficient of the $$y'$$ term of the standard form of the ODE:

 * $$ \begin{align}

\left(1-x^{2}\right)y'' - 2xy' &= 0 \\ y'' + \frac{-2x}{1-x^{2}}y' &= 0 \\ \\ \text{so:} \quad a_{1}\left(x\right) = \frac{-2x}{1-x^{2}} & \end{align} $$

 * Plugging $$u_{1}\left(x\right)$$ and $$a_{1}\left(x\right)$$ back into the first equation:

 * $$ \begin{align}

u_{2} &= 1 \cdot \int_{x} \left[ \left(1\right)^{-2} \ \text{exp} \left\{ -\int_{t} \frac{-2s}{1-s^{2}} ds \right\} \right] dt \\ &= \int_{x} \text{exp}\left( \int_{t} \frac{2s}{1-s^{2}} ds \right) dt \end{align} $$

 * To simplify this further, we first need to solve the innermost integral. To do this, perform a change of variables. (Note: we're neglecting constants of integration, since they do not contribute anything.)

 * $$ \begin{align}

\text{Let:} \qquad \quad & \\ u&=1-s^{2} \\ -du&=2s\ ds \\ \text{Then:} \qquad \quad & \\ \int_{t} \frac{2s}{1-s^{2}}\ ds &= -\int_{t} \frac{1}{u}\ du \\ &= -\text{ln}\left(u\right)\big]_{s=t} \\ &= -\text{ln}\left(1-s^{2}\right)\big]_{s=t} \\ &= \text{ln}\left(\frac{1}{1-t^{2}}\right) \end{align} $$

 * This value for the innermost integral can now be inserted back into the full equation:

 * $$ \begin{align}

u_{2} &= \int_{x}\ \text{exp}\left[ \text{ln}\left(\frac{1}{1-t^{2}}\right) \right]\ dt \\ &= \int_{x}\ \frac{1}{1-t^{2}}\ dt \\ &= \frac{1}{2}\ \text{ln}\left(\frac{1+x}{1-x}\right) \end{align} $$

Contributors:
 * Egm6321.f09.team4.sls 16:56, 15 October 2009 (UTC)

Problem #2:
(Lecture 19-1 - King et. al., pg. 28, problem 1.1b)

 * Given :

 * The following ODE:

 * $$ \begin{align}

F\left(x,y,y',y\right) = xy+2y'+xy = 0 \\ \end{align} $$

 * and one solution of this ODE:

 * $$ \begin{align}

u_{1} = x^{-1}\text{ sin}\left( x \right) \end{align} $$

 * Find :
 * Show that $$u_{1}$$ is a solution to the ODE.
 * Use reduction of order method 2 to find the second solution, $$u_{2}$$.

 * Solution :

 * First, we show that $$u_1 = x^{-1}\text{ sin}\left(x\right)$$ is a valid solution to this ODE, by making the substitution $$y = u_1$$:

 * $$ \begin{align}

y  &= x^{-1} \text{ sin}\left(x\right) \\ y' &= -x^{-2}\text{ sin}\left(x\right) + x^{-1}\text{ cos}\left(x\right) \\ y'' &= 2x^{-3}\text{ sin}\left(x\right) - x^{-2}\text{ cos}\left(x\right)-x^{-2}\text{ cos}\left(x\right) -x^{-1}\text{ sin}\left(x\right) \\ &= \left(2x^{-3} -x^{-1}\right)\text{ sin}\left(x\right) -2x^{-2}\text{ cos}\left(x\right) \end{align} $$

 * Inserting these values into the ODE:

 * $$ \begin{align}

0 &= \left(2x^{-3} -x^{-1}\right)\text{ sin}\left(x\right) - 2x^{-2}\text{ cos}\left(x\right) - 2x^{-3}\text{ sin}\left(x\right) + 2x^{-2}\text{ cos}\left(x\right) + x^{-1}\text{ sin}\left(x\right) \\ 0 &= \cancel{2x^{-3}\text{ sin}\left(x\right) - 2x^{-3}\text{ sin}\left(x\right)} \cancel{- 2x^{-2}\text{ cos}\left(x\right) + 2x^{-2}\text{ cos}\left(x\right)} \cancel{- x^{-1}\text{ sin}\left(x\right) + x^{-1}\text{ sin}\left(x\right)} \\ 0 &= 0 \quad \text{Proof.} \end{align} $$

 * Next, we use reduction of order method 2 to find a second independent solution, $$u_{2}$$. Using equation 2 from Lecture 17-4:

 * $$ \begin{align}

u_{2} &= u_{1} \int_{x} \left(u_{1}\right)^{-2}\text{ exp}\left( -\int_{t} a_{1}\left(s\right)ds\right)dt \\ &= x^{-1}\text{ sin}\left(x\right) \int_{x} \frac{t^{2}}{\text{sin}^{2}t} \text{ exp}\left(-\int_{t}\frac{2}{s}ds\right)dt \\ \end{align} $$

 * Solve the inner integral first:

 * $$ \begin{align}

-\int_{t} \frac{2}{s} ds = -2 \text{ ln}\left(t\right) = \text{ ln}\left( \frac{1}{t^{2}} \right) \end{align} $$

 * Then, plug this result into the outer integral:

 * $$ \begin{align}

u_{2} &= x^{-1}\text{ sin}\left(x\right) \int_{x} \frac{\cancel{t^{2}}}{\text{sin}^{2}t} \cdot \frac{1}{\cancel{t^{2}}} dt \\ &= x^{-1}\text{ sin}\left(x\right) \cdot -\text{ cot}\left(x\right) \\ &= -x^{-1}\text{ cos}\left(x\right) \end{align} $$

Contributors:
 * Egm6321.f09.team4.sls 16:27, 19 October 2009 (UTC)

Problem #3:
(Lecture 22-1: from King et. al., pg.28 prob. 1.3.a)

 * Given :

 * $$ \begin{align}

y'' -2y' + y = x^{3/2}\text{ exp}\left(x\right) \end{align} $$

 * Find :

 * The general solution of this non-homogenous ODE.

 * Solution :

 * Let's first look at the homogeneous equation:

 * $$y'' -2y' + y = 0$$

 * This is a linear, 2nd-order ODE with constant coefficients, giving us the characteristic equation:

 * $$r^2-2r+1=0$$

 * This equation has two identical roots of r=1. Therefore one of the solutions is $$u_1(x)=C_1e^x$$
 * To determine the second solution, let us use reduction of order method 2:

 * $$u_2(x)=U(x)u_1(x)$$

 * $$u_2'(x)=U'u_1+Uu_1'$$

 * $$u_2=Uu_1+2U'u_1'+Uu_1''$$

 * $$u_2-2u_2'+u_2=Uu_1+2U'u_1'+Uu_1''-2U'u_1-2Uu_1'+Uu_1$$

 * Which simplifies to:

 * $$\cancel{U(u_1-2u_1'+u_1)}+U'(2u_1'-2u_1)+Uu_1$$

 * The U term cancels because $$u_1$$ is a solution to the homogeneous equation.
 * Therefore the dependent variable U is missing, and we can write:

 * $$Z(x)=U'(x)$$

 * $$Z(2u_1'-2u_1)+Z'(u_1)=0$$

 * We have reduced the problem to a linear first order ODE with varying coefficients.
 * Because of the homogeneity of the ODE we can solve for Z by direct integration:

 * $$Z(2u_1'-2u_1)+Z'(u_1)\Rightarrow \frac{Z'}{Z}=2-\frac{2u_1'}{u_1}$$

 * $$ \begin{align}

\int \frac{Z'}{Z} &= \int_{ }^{x}2ds-\int \frac{2u_1'}{u_1} \\ ln(Z) &= 2x-2ln(u_1)+C_2 \\ &= 2x-2ln(C_1e^x)+C_2 \\ &= C_2-2ln(C_1)+2x-2x \\ &= C_2-2ln(C_1) \\ &= D \quad \text{(where D is a constant)} \end{align} $$

 * $$ \begin{align}

&U' = Z = e^D = k_1 \quad \text{(where } k_1 \text{ is a constant)} \\ &U = \int_{ }^{x}k_1ds=k_1x \end{align} $$

 * Substituting into the original expression for $$u_2$$ we get:

 * $$u_2=Uu_1=(k_1x)(C_1e^x)=C_2xe^x$$

 * Now we must solve for the particular solution. Let us try variation of parameters with the two equations forming the Wronskian as:

 * $$c_1'u_1+c_2'u_2=c_1'e^x+c_2'xe^x=0$$

 * $$c_1'u_1'+c_2'u_2'=c_1'e^x+c_2'(e^x+xe^x)=f(x)$$

 * $$\begin{align}

\begin{bmatrix} e^x & xe^x\\ e^x & e^x+xe^x \end{bmatrix}\cdot \begin{bmatrix} c_1'\\ c_2' \end{bmatrix}=\begin{bmatrix} 0\\ f \end{bmatrix} \end{align} $$

 * $$\begin{align}

\begin{bmatrix} c_1'\\ c_2' \end{bmatrix}=\underline{W}^{-1}\begin{bmatrix} 0\\ f \end{bmatrix}=\frac{1}{W}\begin{bmatrix} u_2' & -u_2\\ -u_1' & u_1 \end{bmatrix}\cdot \begin{bmatrix} 0\\ f \end{bmatrix}=\frac{1}{W}\begin{bmatrix} -u_2f\\ u_1f \end{bmatrix} \end{align}$$

 * W is the determinant of the Wronskian matrix:

 * $$W=(e^{2x}+xe^{2x})-xe^{2x}=e^{2x}$$

 * $$\begin{align}

\begin{bmatrix} c_1'\\ c_2' \end{bmatrix}=e^{-2x}\begin{bmatrix} -xe^x(x^{3/2}e^x)\\ e^x(x^{3/2}e^x) \end{bmatrix}=\begin{bmatrix} -x^{5/2}\\ x^{3/2} \end{bmatrix} \end{align}$$

 * Solving for the coefficients we can then obtain:

 * $$c_1(x)=-\int_{ }^{x}s^{5/2}ds=-\frac{2}{7}x^{7/2}+A$$

 * $$c_2(x)=\int_{ }^{x}s^{3/2}ds=\frac{2}{5}x^{5/2}+B$$

 * where A and B are constants.
 * Because the original ODE is linear the general solution is the sum of the homogeneous and particular solutions:

 * $$y(x)=y_h+y_p=Ae^x+Bxe^x-\frac{2}{7}x^{7/2}e^x+\frac{2}{5}x^{7/2}e^x$$

 * $$y(x)=Ae^x+Bxe^x+\frac{4}{35}x^{7/2}e^x$$

Contributors:
 * Egm6321.f09.team4.palubin.d 23:02, 19 October 2009 (UTC)
 * Egm6321.f09.team4.sls 17:07, 21 October 2009 (UTC) (just checked the solution)

Problem #4:
(Lecture 22-3)

 * Given :

 * Some linear, second-order ODE with variable coefficients.

 * Find :

 * Describe in words the solution process for this equation, if:
 * The equation is homogenous.
 * The equation is non-homogenous.

 * Solution :

 * Let us start with the example equation $$y''+a_1y'+a_0y=0$$

 For a homogeneous equation, the techniques are as follows:

 Exactness : Test to see if the ODE is exact. Apply the exactness conditions:

 * $$\begin{align}

\text{(a)} \quad &f_{xx} + 2pf_{xy} +p^{2}f_{yy} = g_{xp} + pg_{yp} - g_{y} \\ \text{(b)} \quad &f_{xp} + pf_{yp} + 2f_{y} = g_{pp} \end{align}$$

If not exact, try using an Euler integrating factor to force exactness, and determine the first integral $$\Phi$$ of the system. Now the equation has been reduced to a first order system. From here, depending on the equation either use direct integration or another integrating factor and see if one can solve for $$y\left(x\right)$$.

 Trial solutions : Use trial solutions to find at least one solution to the equation. Try using $$u=e^x$$ to develop the characteristic equation for the system, $$(r^2+a_1r+a_0)$$. If there are two distinct roots $$r_1$$ and $$r_2$$ that are not functions of $$x$$, we have two solutions $$u_1=e^{r_1x}$$ and $$u_2=e^{r_2x}$$. If we have identical roots, or if we are given one root and asked to find the second, we can apply reduction of order method 2.

 Reduction of Order, Method 2 : This method allows us to solve for $$u_2$$ assuming it is a function of some unknown function $$U$$ multiplied by $$u_1$$. This allows us to obtain an L2-ODE for $$U$$ which is missing the dependent variable. Therefore we apply reduction of order techniques defining $$Z=U'$$ to obtain an L1-ODE, and we can solve for $$Z$$ by direct integration or using an integrating factor. Following another integration to obtain $$U$$ from $$Z$$, we can obtain $$u_2$$.

 For the non-homogeneous case, we use $$y''+a_1y'+a_0y=f(x)$$. First, we follow the procedures listed above to find at least one homogeneous solution. After that, there are a few possible paths we can follow:

 Trial solutions : Plug in possible solutions for $$y$$ with unknown coefficients and/or exponents based on the forcing function and solve for the unknowns to find the particular solution. This may or may not work.

 Variation of Parameters : taking the form of the homogeneous solution $$y=c_1u_1+c_2u_2$$, assume that $$c_1$$ and $$c_2$$ are now functions of $$x$$. Compute $$y'$$ and $$y''$$ making the critical assumption that $$c_1'u_1+c_2'u_2=0$$. Plug these functions into the differential equation to obtain the second expression $$c_1'u_1'+c_2'u_2'=f(x)$$. Using these two expressions, set up the Wronskian matrix as shown:

 * $$\begin{align}

\begin{bmatrix} u_1 & u_2\\ u_1' & u_2' \end{bmatrix}\cdot \begin{bmatrix} c_1'\\ c_2' \end{bmatrix}=\begin{bmatrix} 0\\ f \end{bmatrix} \end{align} $$

Solve for $$c_1'$$ and $$c_2'$$, and then integrate to find $$c_1$$ and $$c_2$$. Substitute these solutions into $$y=c_1u_1+c_2u_2$$ to find the general solution to the ODE.

 Alternative method : if one solution to the homogeneous equation is known, we can apply a similar method to reduction of order method 2, except instead of using the homogeneous case, we can set the L1-ODE obtained equal to the forcing function and solve directly using the Euler integrating factor method. </li> </ol> </li> </ol> Contributors:
 * Egm6321.f09.team4.palubin.d 15:22, 20 October 2009 (UTC)
 * Egm6321.f09.team4.sls 17:42, 21 October 2009 (UTC) (just checked the solution)

Problem #5:
(Lecture 23-1)

 * Given :

 * $$ \begin{align}

&\left(x-1\right)y'' -xy' + y = x \\ &\\ &u_{1} = \text{exp}\left(x\right) \end{align} $$

 * Find :

 * The solution to this equation. Do so twice, using the following methods:
 * Variation of parameters.
 * Alternative method: (see lectures 21-2 and 21-3)

 * Solution :

 * Note that $$u_1(x)$$ is a solution to the homogeneous equation:

 * $$\left(x-1\right)y'' -xy' + y = 0$$

 * Method of variation of parameters utilizes $$u_1(x)$$ and another solution $$u_2(x)$$ to find the homogeneous and the particular solutions required to assemble an expression for $$y(x)$$. The process is to:

 * a) Find $$u_2(x)$$ using reduction of order method 2.
 * b) Assemble the homogeneous solution $$y_{h}(x)$$ using our expressions for $$u_1(x)$$ and $$u_2(x)$$
 * c) Use the method of variation of parameters via the Wronskian Matrix to find the particular solution $$y_{p}(x)$$.
 * d) Assemble the total solution $$y(x)=y_{h}(x)+y_{p}(x)$$.
 * e) Compare that to the total solution using the Alternate Method.

 * a) Find $$u_2(x)$$:

 * $$y_{h}=Uu_1$$
 * $$y'_{h}=U'u_1+Uu'_1$$
 * $$y_{h}=U'u'_1+Uu_1+u'_1U'+u''_1U$$

 * Plug into equation

 * $$\left(x-1\right)y'' -xy' + y = 0$$

 * and collect terms.

 * $$(x-1)(U'u'_1+Uu_1+u'_1U'+u_1U) -x(U'u_1+Uu'_1) + Uu_1 = 0$$

 * $$U(u_1(x-1)-xu'_1+u_1)+U'(2u'_1(x-1)-xu_1)+U(u_1(x-1)) = 0$$

 * $$U(\underset{0}{\underbrace{u_1(x-1)-xu'_1+u_1}})+U'(2u'_1(x-1)-xu_1)+U(u_1(x-1)) = 0$$

 * $$U'(2u'_1(x-1)-xu_1)+U''(u_1(x-1)) = 0$$

 * $$Z(2u'_1(x-1)-xu_1)+Z'(u_1(x-1)) = 0$$

 * $$Z=Cexp{\left [-\int \frac{2u'_1(x-1)-xu_1}{u_1(x-1)}dx \right ]}$$

 * $$Z=Cexp{\left [\int \frac{-2u'_1(x-1)+xu_1}{u_1(x-1)}dx \right ]}$$

 * $$Z=U'=> U=C\int exp{\left [\int \frac{-2u'_1(x-1)+xu_1}{u_1(x-1)}dx \right ]}dx+C_1$$

 * Recall,

 * $$y_{h}=Uu_1$$
 * $$y_{h}=k_1u_1+k_2u_2$$

 * Therefore,

 * $$u_2=u_1\int exp{\left [\int \frac{-2u'_1(x-1)+xu_1}{u_1(x-1)}dx \right ]}dx$$

 * Substituting in $$u_1=e^x$$, we get:

 * $$u_2=e^x\int exp{\left [\int \frac{-2e^x(x-1)+xe^x}{e^x(x-1)}dx \right ]}dx=e^x\int exp{\left [\int \frac{-2(x-1)+x}{(x-1)}dx  \right ]}dx$$

 * $$u_2=e^x\int exp{\left [\int -2+\frac{x}{(x-1)}dx \right ]}dx=e^x\int exp{\left [ -2x+ln(x-1)+x-1+C\right ]}dx$$

 * $$u_2=e^x\int e^C(x-1)exp{\left [ -x-1\right ]}dx$$

 * Setting e^c equal to another constant D and integrating by parts we obtain:

 * $$u_2=De^x[-e^{-x-1}(x-1)-e^{-x-1}+E]=D[-e^{-1}(x-1)-e^{-1}+Ee^x]$$

 * Simplifying this further yields:

 * $$u_2=D[-e^{-1}(x-1)-e^{-1}+Ee^x]=D[-xe^{-1}+Ee^x]=k_2x+k_3e^x$$

 * However, since e^x was already established as our first u, we get:

 * $$u_2=k_2x$$

 * b)The homogeneous solution is therefore,

 * $$y_{h}=k_1e^x+k_2x$$

 * c) Solve for the non-homogeneous solution using

 * $$y_{p}=P_1(x)u_1(x)+P_2(x)u_2(x)$$

 * Where $$P_1(x)$$ and $$P_2(x)$$ are found by first finding the determinant of $$\underline{W}$$

 * $$\underline{W}=\begin{bmatrix}

u_1 & u_2\\ u'_1 & u'_2 \end{bmatrix}$$

 * $$W=det(\underline{W})$$

 * $$W=u_1u'_2-u'_1u_2$$

 * $$W=exp(x)*\frac{\partial }{\partial x}\left [exp(x)\int exp{\left [\int \frac{-2u'_1(x-1)+xu_1}{u_1(x-1)}dx \right ]}dx  \right ]-exp(x)*exp(x)\int exp{\left [\int \frac{-2u'_1(x-1)+xu_1}{u_1(x-1)}dx  \right ]}dx$$

 * Which becomes,

 * $$W=exp(2x)*exp{\left [\int \frac{-2u'_1(x-1)+xu_1}{u_1(x-1)}dx \right ]}dx$$

 * from Lecture 19-3,

 * $$P_1(x)=\underset{d_1(x))}{\underbrace{-\int \frac{u_2(s)f(s)}{W}ds}}+A$$

 * $$P_2(x)=\underset{d_2(x))}{\underbrace{\int \frac{u_1(s)f(s)}{W}ds}}+B$$

 * and the constants $$A$$ and $$B$$ are set to zero because they are arbitrary. Therefore,

 * $$P_1(x)=-\int \frac{xexp(x)\int exp{\left [\int \frac{-2u'_1(x-1)+xu_1}{u_1(x-1)}dx \right ]}dx}{exp(2x)*exp{\left [\int \frac{-2u'_1(x-1)+xu_1}{u_1(x-1)}dx  \right ]}}dx$$

 * $$P_2(x)=\int \frac{xexp(x)}{exp(2x)*exp{\left [\int \frac{-2u'_1(x-1)+xu_1}{u_1(x-1)}dx \right ]}}dx$$

 * d) The total solution is therefore,

 * $$y(x)=y_{h}+y_{p}$$

 * $$=C_1u_1+Cu_2+P_1u_1+P_2u_2$$

 * $$=C_1exp(x)+Cexp(x)\int exp{\left [\int \frac{-2u'_1(x-1)+xu_1}{u_1(x-1)}dx \right ]}dx-exp(x)\int \frac{xexp(x)\int exp{\left [\int \frac{-2u'_1(x-1)+xu_1}{u_1(x-1)}dx  \right ]}dx}{exp(2x)*exp{\left [\int \frac{-2u'_1(x-1)+xu_1}{u_1(x-1)}dx  \right ]}}dx+\int \frac{xexp(x)}{exp(2x)*exp{\left [\int \frac{-2u'_1(x-1)+xu_1}{u_1(x-1)}dx  \right ]}}dxexp(x)\int exp{\left [\int \frac{-2u'_1(x-1)+xu_1}{u_1(x-1)}dx  \right ]}dx$$

 * This will be simplified later after comparison with the Alternate Method.

 * e) The Alternate Method

 * Back to reduction of order method 2,

 * $$U'(2u'_1(x-1)-xu_1)+U''(u_1(x-1)) = \underline{x}$$

 * $$Z(2u'_1(x-1)-xu_1)+Z'(u_1(x-1)) = \underline{x}$$

 * $$Z'+Z\left [\frac{2u'_1(x-1)-xu_1}{u_1(x-1)} \right ]= \frac{x}{u_1(x-1)}=g(x)$$

 * We use integrating factor $$\mu(x)$$ to solve this N-H.L1.ODE.VC,

 * $$\mu\left(x\right)Z' + \mu\left(x\right)p\left(x\right)Z = \mu\left(x\right)g\left(x\right)$$

 * Assume that $$\mu\left(x\right)$$ satisfies $$\mu\left(x\right)p\left(x\right) = \mu'\left(x\right)$$, this equation becomes:

 * $$\mu(x)Z' + \mu'(x)= \mu(x)g(x)$$
 * $$\frac{d}{dx}\left[ \mu(x)Z \right] = \mu(x)g(x)$$

 * Integrating both sides of the equation, then solving for $$Z$$:

 * $$Z = \frac{\int{\mu\left(x\right)g\left(x\right)dx + c}}{\mu\left(x\right)}$$

 * We can chose $$c=0$$ because it is arbitrary. To find $$\mu\left(x\right)$$, we then use the assumption described above:

 * $$\mu(x)p(x)=\mu'(x)$$
 * $$p(x)= \frac{\mu'(x)}{\mu(x)} $$
 * $$p(x)= \frac{d}{dx}\left[ ln(\mu(x)) \right] $$
 * $$\int{p(x)}dx + k = ln(\mu(x)) \quad \text{(choose k=0)} $$
 * $$\int{\frac{2u'_1(x-1)-xu_1}{u_1(x-1)}}dx = ln(\mu(x)) $$
 * $$\mu(x)= exp\int \left( \frac{2u'_1(x-1)-xu_1}{u_1(x-1)} \right)dx $$

 * This results in,

 * $$Z = \frac{\int{xexp\int \left( \frac{2u'_1(x-1)-xu_1}{u_1(x-1)} \right)dx}dx}{exp\int \left( \frac{2u'_1(x-1)-xu_1}{u_1(x-1)} \right)dx}$$

 * $$Z =U'=> U= \int \frac{\int{xexp\int \left( \frac{2u'_1(x-1)-xu_1}{u_1(x-1)} \right)dx}dx}{exp\int \left( \frac{2u'_1(x-1)-xu_1}{u_1(x-1)} \right)dx}dx$$

 * and then $$y=Uu_1$$

 * $$y =Uu_1= exp(x)\int \frac{\int{xexp\int \left( \frac{2u'_1(x-1)-xu_1}{u_1(x-1)} \right)dx}dx}{exp\int \left( \frac{2u'_1(x-1)-xu_1}{u_1(x-1)} \right)dx}dx$$

Contributors: Egm6321.f09.Team4.meyerat 03:19, 20 October 2009 (UTC)

and

Egm6321.f09.team4.palubin.d 20:24, 21 October 2009 (UTC)

Problem #6:
(Lecture 23-1)

 * Given :

 * $$ \begin{align}

&xy'' +2y' + xy = x \\ &\\ &u_{1} = x^{-1}\text{ sin}\left(x\right) \end{align} $$

 * Find :

 * The solution to this equation. Do so twice, using the following methods:
 * Variation of parameters.
 * Alternative method: (see lectures 21-2 and 21-3)

 * Solution :

 * (a)-(d):

 * From Problem 2, we found that $$u_2=-x^{-1}cos(x)$$. Using that, we obtain

 * $$y_{h}=C_1x^{-1}sin(x)-C_2x^{-1}cos(x)$$

 * The nonhomogeneous solution is constructed as,

 * $$y_{p}=P_1u_1+P_2u_2$$

 * $$y_{p}=P_1x^{-1}sin(x)-P_2x^{-1}cos(x)$$

 * where $$P_1$$ and $$P_2$$ are functions of x. Using the Wronskian matrix:

 * $$\underline{W}=\begin{bmatrix}

u_1 & u_2\\ u'_1 & u'_2 \end{bmatrix}$$

 * $$W=det(\underline{W})$$

 * $$W=u_1u'_2-u'_1u_2$$

 * $$W=x^{-1}sinx(x^{-1}sinx+x^{-2}cosx)-((x^{-1}cosx-x^{-2}sinx)(-x^{-1}cosx))$$

 * $$W=x^{-2}(sin^{2}x+cos^{2}x)$$

 * $$W=x^{-2}$$

 * from Lecture 19-3,

 * $$P_1(x)=\underset{d_1(x)}{\underbrace{-\int \frac{u_2(s)f(s)}{W}ds}}+A$$

 * $$P_2(x)=\underset{d_2(x)}{\underbrace{\int \frac{u_1(s)f(s)}{W}ds}}+B$$

 * and the constants $$A$$ and $$B$$ are set to zero because they are arbitrary. Therefore,

 * $$P_1=-\int \frac{-x^{-1}xcos(x)}{x^{-2}}dx=\int x^{2}cos(x)dx$$

 * $$P_2=\int \frac{x^{-1}xsin(x)}{x^{-2}}dx=\int x^{2}sin(x)dx$$

 * $$P_1=(x^2-2)sin(x)+2xcos(x)+C_3$$

 * $$P_2=(-x^2+2)cos(x)+2xsin(x)+C_4$$

 * Plug in,

 * $$y_{p}=P_1u_1+P_2u_2$$

 * $$y_{p}=x^{-1}sin(x)\left [(x^2-2)sin(x)+2xcos(x)+C_3 \right ]-x^{-1}cos(x)\left [(-x^2+2)cos(x)+2xsin(x)+C_4  \right ]$$

 * Which reduces to,

 * $$y_{p}=x-2x^{-1}+C_3x^{-1}sin(x)-C_4x^{-1}cos(x)$$

 * Combining with the homogeneous solution, we obtain:

 * $$y=x-2x^{-1}+K_1x^{-1}sin(x)+K_2x^{-1}cos(x)$$

 * e) Alternate Method:

 * $$y_{h}=Uu_1$$
 * $$y'_{h}=U'u_1+Uu'_1$$
 * $$y_{h}=U'u'_1+Uu_1+u'_1U'+u''_1U$$

 * Plug into equation

 * $$xy'' +2y' + xy = x$$

 * And the reduction of order method 2 leaves us with,

 * $$U''(xu_1)+U'(2xu'_1+2u_1)=x$$

 * or,

 * $$Z'(xu_1)+Z(2xu'_1+2u_1)=x$$

 * $$Z'+Z\frac{2xu'_1+2u_1}{xu_1}=\frac{x}{xu_1}=\frac{1}{u_1}=g(x)$$

 * Using the integrating factor method,

 * $$\mu\left(x\right)Z' + \mu\left(x\right)p\left(x\right)Z = \mu\left(x\right)g\left(x\right)$$

 * Assume that $$\mu\left(x\right)$$ satisfies $$\mu\left(x\right)p\left(x\right) = \mu'\left(x\right)$$, this equation becomes:

 * $$\mu(x)Z' + \mu'(x)Z= \mu(x)g(x)$$
 * $$\frac{d}{dx}\left[ \mu(x)Z \right] = \mu(x)g(x)$$

 * Integrating both sides of the equation, then solving for $$Z$$:

 * $$Z = \frac{1}{\mu(x)}\int{\mu\left(x\right)g\left(x\right)dx}$$

 * $$U = \int \frac{1}{\mu(x)}\int{\mu\left(x\right)g\left(x\right)dx}dx$$

 * $$y = u_1\int \frac{1}{\mu(x)}\int{\mu\left(x\right)g\left(x\right)dx}dx$$

 * To find $$\mu\left(x\right)$$, we then use the assumption described above:

 * $$\mu(x)p(x)=\mu'(x)$$
 * $$p(x)= \frac{\mu'(x)}{\mu(x)} $$
 * $$p(x)= \frac{d}{dx}\left[ ln(\mu(x)) \right] $$
 * $$\int{p(x)}dx + k = ln(\mu(x)) \quad \text{(choose k=0)} $$
 * $$\int\frac{2xu'_1+2u_1}{xu_1}dx = ln(\mu(x)) $$
 * $$\mu(x)= exp\int \left( \frac{2xu'_1+2u_1}{xu_1} \right)dx $$

 * Evaluating $$\mu$$,

 * $$\mu=exp\int \frac{2xu'_1+2u_1}{xu_1}dx$$

 * $$=exp\int \frac{2u'_1}{u_1}+\frac{2}{x}dx$$

 * $$=exp\left [2ln(u_1)+2ln(x)+2C_4 \right ]$$

 * $$\mu=C_5u^2_1x^2$$

 * Plug in,

 * $$y = u_1\int \frac{1}{C_5u^2_1x^2}\left [\int{\frac{1}{u_1}C_5u^2_1x^2dx} \right ]dx$$

 * $$y = u_1\int \frac{1}{u^2_1x^2}\left [\int{\frac{1}{u_1}u^2_1x^2dx} \right ]dx$$

 * $$y = u_1\int \frac{1}{u^2_1x^2}\left [\int{u_1x^2dx} \right ]dx$$

 * $$y = u_1\int \frac{1}{u^2_1x^2}\left [\int{x^{-1}sin(x)x^2dx} \right ]dx$$

 * $$y = u_1\int \frac{1}{u^2_1x^2}\left [\int{xsin(x)dx} \right ]dx$$

 * $$y = u_1\int \frac{1}{x^{-2}sin^2(x)x^2}\left [-xcos(x)+sin(x)+C_6 \right ]dx$$

 * $$y = u_1\int \frac{-xcos(x)}{sin^2(x)}+\frac{1}{sin(x)}+\frac{C_6}{sin^2(x)}dx$$

 * via integration by parts, this becomes,

 * $$y = u_1\left [ln(csc(x)-cot(x))+xcscx-ln(csc(x)-cot(x))-C_6cot(x)+C_7 \right ]$$

 * $$y = x^{-1}sin(x)\left [xcscx-C_6cot(x)+C_7 \right ]$$

 * Results in,

 * $$y = 1-C_6x^{-1}cos(x)+C_7x^{-1}sin(x)$$

Contributors:
 * Egm6321.f09.Team4.meyerat 06:28, 21 October 2009 (UTC)

title: User:Egm6321.f09.team4/HW4


text:
Talk:C++/STL

Description of the STL containers
The current description of the STL containers is too brief to be of much use to a C++ beginner, at least to one who began with this course, since they may not have taken a data structures course. So, I think it would be better if we had something like:

Vectors (the container)
(Include here the implementation of the container, as:)

(Then follow up with description of the container, including special features, for vectors, the bounds-checking; for deques, the efficiency in modifications at both ends)

Vectors are an extension of the C array, in that they use contiguous storage space. However, a vector is variable-sized and can grow as more and more elements are added. And, unlike arrays, vector also implement a form of bounds-checking, where the member function  throws an   exception when a position outside the range is accessed.

(Followed by a list of functions and operators. The array-subscript operator [] is available only for vectors and deques, so they should be included in the list, if available.)

A section could be included, discussing the advantages and disadvantage of each container.

I'm in two minds about including constructors. Anyway, the lessons section should include an example for each constructor available.

What do you think? Murukeshm 16:37, 15 October 2009 (UTC)

 * It's currently a stub-class article. Since it's obvious there is missing content, go ahead and add it. --Sigma 7 02:09, 20 October 2009 (UTC)

Alternate Lesson Approach?
Effectively using the STL could easily be a course itself. Would it make sense to reduce this page to simply demonstrate several practical uses of each type of major STL component, and then a very, very quick summary of the other available STL templates?

Turning this page into a giant reference page on all the STL classes seems redundant and not very practical for teaching a beginner 'the big picture'.

For example, maybe an outline like this:
 * STL Examples
 * STL string
 * std::string example
 * STL Containers
 * std::vector<> to store ints
 * STL Iterators
 * std::list<> to store ints
 * STL Algorithms
 * std::sort
 * std::find_if
 * STL Adapters
 * std::binder1st
 * STL Complex Example
 * Combine std::map, std::string, iterators, and algorithms
 * STL overview
 * Brief description of what else the library can do

Autumnfields 22:24, 25 August 2010 (UTC)

title: Talk:C++/STL


text:
User:ShayleeMcGavran

=Freshman Seminar=

Always Wanted To Schedule

 * Topic

Want to run a "NO KILL" animal rescue center

 * Research Component

 * week 1

Research
 * week 2

Research
 * week 3

Research
 * week 4

Make up work
 * week 5

Outline Paper
 * week 6

Rough Draft
 * week 7

Final paper
 * week 8

Final Presentation

 * Topic (10%)

< >

 * Research (20%)

<>

 * 1) Internet site:
 * 2) Book:
 * 3) Scholarly Journal:
 * 4) Other (interview, TV show,etc):

 * Your accomplishment (20%)

<>

 * Project Review (50%)
 * 1)What went well
 * 2)What went poorly
 * 3)Future strategies

title: User:ShayleeMcGavran


text:
User:Patrickmd

My name is Patrick, and music seems to be all I think about - and film, as of late. Wikiversity is a new animal to me, I had no idea such a site even existed. Now that I do, I'm just here to learn, like everyone else.

title: User:Patrickmd


text:
User:Rlyon

Prof. Robert Lyon KMC 3-103 212-998-0232 rlyon@stern.nyu.edu

Fall 2010 Office Hours - Please make an appointment during the following hours Mondays: 10:00 a.m.-4:30 p.m. Tuesdays: 3:30 -5:30 p.m. Wednesdays: 10:00 a.m.-4:30 p.m. Thursdays: 3:30 -5:30 p.m. Fridays: (limited hours -- see sign-up link) CLICK HERE User:Rlyon/NYU Stern Office Hours TO SIGN UP FOR OFFICE HOURS (30 minute slots):

title: User:Rlyon