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Math Help - Help finding curvatures of x(u,v)?

  1. #1
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    Help finding curvatures of x(u,v)?

    I have a homework due in about 9 hours and I really need help, I don't understand how to do these types of problems and the professor is really hard to understand.

    The function is x(u,v) = (u+v, u-v, uv), at the point P = (2,0,1)

    The question says to Find the Gauss curvature, mean curvature, principal curvatures and the corre-sponding principal directions of the function.

    I've gone through this but there's just so many calculations to do and I feel like I must've messed up somewhere.

    I know that in order to find all these things, you need the first and second fundamental forms, along with the principal normal.

    Can someone please help me?

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  2. #2
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    Oklahoma
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    Re: Help finding curvatures of x(u,v)?

    Even if you open this thread past the time when my homework is due, please still answer it if you can.

    Thank You
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