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3D Curve fitting


I'm not sure if this is a trivial question, but I haven't been able
to figure it out.  I'm trying to fit a surface through a series of
points, (similar to Fit, but in z for x and y) and generate an
equation.  Any ideas on how to do this?

Thanks,
Owen

--
+-----------------------------+---------------------------------------+
|  Owen S. Nishioka           |   E-Mail:                             |
|                             |      nishioka at best.com                |
|    Hope for the best,       |      owen at olympus.arc.nasa.gov        |
|    Expect the worst,        |                                       |
|    Life's a play,           |   WWW:                                |
|    We're unrehearsed        |      http://www.best.com/~nishioka    |
|                             |      http://fracture.arc.nasa.gov     |
+-----------------------------+---------------------------------------+


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