Login [Register]
Don't have an account? Register now to chat, post, use our tools, and much more.
This is an archived, read-only copy of the United-TI subforum , including posts and topic from May 2003 to April 2012. If you would like to discuss any of the topics in this forum, you can visit Cemetech's Technology & Calculator Open Topic subforum. Some of these topics may also be directly-linked to active Cemetech topics. If you are a Cemetech member with a linked United-TI account, you can link United-TI topics here with your current Cemetech topics.

Math and Science => Technology & Calculator Open Topic
Author Message
ut1238

Newbie

Joined: 16 Aug 2010
Posts: 46

 Posted: 16 Aug 2010 03:39:54 pm    Post subject: There's this example in the textbook: y=-x^2/72 +x I don't know how they found out the parametric equation to be: x=24*sqr(2)t y=-16t^2+24sqr(2)t. Please can someone show me how they got 24*sqr(2)t for x. I don't know where in the blue sky they got that number from. I really am not understand the whole parametric equation thing. Please help me understand parametric equations and how to come up with them when I have an equation in terms of x and y. Parametric equations are a nightmare to me. What's even worse is that I have no idea how to do it in 3D function. That's even more scary not to be able to do it when you are given a curve triple integration and I have to parametrize it.Last edited by Guest on 16 Aug 2010 03:43:29 pm; edited 1 time in total
 Display posts from previous: All Posts Oldest FirstNewest First
Register to Join the Conversation
Have your own thoughts to add to this or any other topic? Want to ask a question, offer a suggestion, share your own programs and projects, upload a file to the file archives, get help with calculator and computer programming, or simply chat with like-minded coders and tech and calculator enthusiasts via the site-wide AJAX SAX widget? Registration for a free Cemetech account only takes a minute.

»
 Page 1 of 1 » All times are GMT - 5 Hours

Advertisement