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posted by  Atienza17 on 11/19/2008 3:01:34 PM  |  status: Closed  

Parameterize Surfaces

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How do you parameterize the equation:
 
x^2+4y^2+9z^2=1
 
I keep getting half of an ellipsoid when I graph it via maple. I know it should look like an ellipsoid so I must not be parameterizing correctly.
 
Thanks!

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posted by Routh on 11/19/2008 6:19:56 PM  |  status: Live
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Atienza17's comment:
"Yep, that was it. Thank you!"
Response Details:
very simple, you are drawing the surface for positve z -only. ,next time take z in negative numbers too.
since  z2=f(x,y)  means that   z=√f(x,y)     and  z= -√f(x,y)  .
I hope ,I correctly guessed your problem.
END
 
Feel free to message me with your doubt before rating my answer.  :)
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