Results 1 to 6 of 6

Math Help - mathematica 7 :plot3d: plz help

  1. #1
    Newbie
    Joined
    May 2010
    Posts
    9

    mathematica 7 :plot3d: plz help

    hi

    how can i draw ( X^2+(Z-0.5)^2== 1 ) by using plot3d in mathematica 7
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor undefined's Avatar
    Joined
    Mar 2010
    From
    Chicago
    Posts
    2,340
    Awards
    1
    Quote Originally Posted by acied View Post
    hi

    how can i draw ( X^2+(Z-0.5)^2== 1 ) by using plot3d in mathematica 7
    I have not had luck plotting non-functions in Mathematica. I would solve for z, resulting in

    z=\sqrt{1-x^2}+\frac{1}{2}

    OR

    z=-\sqrt{1-x^2}+\frac{1}{2}

    Then inputting

    Code:
    Plot3D[{Sqrt[1 - x^2] + 1/2, -Sqrt[1 - x^2] + 1/2}, {x, -10, 10}, {y, -10, 10}]
    Follow Math Help Forum on Facebook and Google+

  3. #3
    A Plied Mathematician
    Joined
    Jun 2010
    From
    CT, USA
    Posts
    6,318
    Thanks
    5
    Awards
    2
    Or you could try a ParametricPlot3D command.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Senior Member
    Joined
    Jul 2006
    Posts
    364
    Isn't that just a circle in the xz-plane?

    Code:
    ContourPlot[x^2 + (z - .5)^2 == 1, {x, -2, 2}, {z, -2, 2}]
    Follow Math Help Forum on Facebook and Google+

  5. #5
    MHF Contributor undefined's Avatar
    Joined
    Mar 2010
    From
    Chicago
    Posts
    2,340
    Awards
    1
    Quote Originally Posted by scorpion007 View Post
    Isn't that just a circle in the xz-plane?
    The surface is an infinitely long cylinder. The surface's intersection with the xz-plane is a circle.
    Follow Math Help Forum on Facebook and Google+

  6. #6
    Super Member
    Joined
    Aug 2008
    Posts
    903
    Quote Originally Posted by acied View Post
    hi

    how can i draw ( X^2+(Z-0.5)^2== 1 ) by using plot3d in mathematica 7
    ContourPlot3D[x^2+(z-0.5)^2==1,{x,-5,5},{y,-5,5},{z,-5,5}]
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. plot3d ??!!
    Posted in the Math Software Forum
    Replies: 0
    Last Post: May 27th 2010, 01:20 AM
  2. plot3d mathematica 7
    Posted in the Math Software Forum
    Replies: 8
    Last Post: May 25th 2010, 09:13 AM
  3. help me in Mathematica
    Posted in the Math Software Forum
    Replies: 2
    Last Post: May 18th 2010, 02:26 AM
  4. Mathematica
    Posted in the Math Software Forum
    Replies: 2
    Last Post: March 24th 2010, 08:13 AM
  5. Plot3D in Mathematica 6
    Posted in the Math Software Forum
    Replies: 3
    Last Post: May 10th 2009, 07:40 AM

Search Tags


/mathhelpforum @mathhelpforum