Results 1 to 3 of 3

Math Help - curves eq. mathematica

  1. #1
    Newbie
    Joined
    May 2010
    Posts
    9

    curves eq. mathematica

    how to find the curve parametric equations from the given graph in mathematica 7??


    the graph in the attach file, and its name Cycloid

    Cycloid - Wikipedia, the free encyclopedia
    Attached Files Attached Files
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Eater of Worlds
    galactus's Avatar
    Joined
    Jul 2006
    From
    Chaneysville, PA
    Posts
    3,001
    Thanks
    1
    The parametric equations for a cycloid are given by

    x=a{\phi}-a\cdot sin{\phi}, \;\ y=a-a\cdot cos{\phi}

    Where 'a' is the radius of the circle.

    To plot in Mathematica, maybe let a=1 or some other arbitrary value.

    I let a=1 here, and the range can be whatever. I just used 4 Pi to show 2 'rolls'.


    ParametricPlot[{u-Sin[u],1-Cos[u]},{u,0,4Pi}]


    Does this help?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    May 2010
    Posts
    9
    but how can i get the curve equation from the data which is in the graph??
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. help me in Mathematica
    Posted in the Math Software Forum
    Replies: 2
    Last Post: May 18th 2010, 02:26 AM
  2. Mathematica
    Posted in the Math Software Forum
    Replies: 2
    Last Post: March 24th 2010, 08:13 AM
  3. Mathematica Help
    Posted in the Math Software Forum
    Replies: 1
    Last Post: March 5th 2010, 08:12 AM
  4. mathematica
    Posted in the Math Software Forum
    Replies: 0
    Last Post: October 27th 2009, 02:03 PM
  5. sketching curves-transformation curves f(x)!!!!
    Posted in the Pre-Calculus Forum
    Replies: 3
    Last Post: December 2nd 2006, 07:55 AM

Search Tags


/mathhelpforum @mathhelpforum