Results 1 to 3 of 3

Math Help - Viewing the graph of parametric functions

  1. #1
    Senior Member
    Joined
    Oct 2009
    Posts
    459

    Viewing the graph of parametric functions

    I am trying to view the graph of a parametric function and its first and second derivatives using Graph by Ivan Johansen. The function is x=t^0.5, y=t^3-2.5t^2. I have it displayed but what is done to display the first derivative? I have found dy/dt, dx/dt, dy/dx.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Senior Member
    Joined
    Oct 2009
    Posts
    459

    Re: Viewing the graph of parametric functions

    I think I was confused by expecting to see the graph of the first derivative 0 at a turning point but you don't see that with parametric function graphs.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    MHF Contributor

    Joined
    Apr 2005
    Posts
    15,541
    Thanks
    1394

    Re: Viewing the graph of parametric functions

    Do you mean graphs of dx/dt and dy/dt separately? It certainly is not necessary that dx/dt be 0 at a turning point of y(x).
    dy/dx= (dy/dt)/(dx/dt)= 0 only requires that dy/dt= 0.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Viewing rectangles?
    Posted in the Calculus Forum
    Replies: 0
    Last Post: September 2nd 2008, 06:21 PM
  2. setting the window to graph parametric equations
    Posted in the Calculators Forum
    Replies: 1
    Last Post: February 24th 2007, 10:47 PM

Search Tags


/mathhelpforum @mathhelpforum