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Math Help - Parameterizing

  1. #1
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    Parameterizing

    Anybody know how to parameterize a parabolic cylinder z=x^2/2

    or a cone z=sqrt(2(x^2+y^2))
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by hammer View Post
    Anybody know how to parameterize a parabolic cylinder z=x^2/2
    x=zeta, y=xi, z=zeta^2/2

    or a cone z=sqrt(2(x^2+y^2))
    x=r cos(theta), y=r sin(theta) z= r

    RonL
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