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Math Help - Circumgyrate Surface

  1. #1
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    Exclamation Circumgyrate Surface

    As uausl,write the formular of Circumgyrate Surface is not diffcult. But this problem is not easy:

    Assume l_{1} and l_{2} are two lines that can not in one plane. and They're not uprightness. Please write the formular of the surface that l_{2} circumgyrated with l_{1}.

    thanks very much
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  2. #2
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    Quote Originally Posted by Xingyuan View Post
    As uausl,write the formular of Circumgyrate Surface is not diffcult. But this problem is not easy:

    Assume l_{1} and l_{2} are two lines that can not in one plane. and They're not uprightness. Please write the formular of the surface that l_{2} circumgyrated with l_{1}.

    thanks very much
    I assume that you mean a rotation-hyperboloid.

    The line l_1 (in black) rotates around the line l_2 (in red) which are not in one plane and which are not perpendicular to each other.

    Without any values I'm not able to give you any formula of the hyperboloid.
    Attached Thumbnails Attached Thumbnails Circumgyrate Surface-rot_oberflaeche.png  
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