Re: interp2 partial derivatives

"Gordon " <MAAC.SImon@xxxxxxxxxx> wrote in message <gpmik1$jd5$1@xxxxxxxxxxxxxxxxxx>...
Hello,
I would like to to interpolate in 2d using the interp2 command. Furthermore I need the partial derivatives of the interpolating function. Does anyone know how to compute these derivatives efficiently?

Thanks in advance
Gordon

Which method? They are all zero for nearest neighbor
interpolation. All are piecewise constant for the linear
method. So the derivatives will depend on the method
you choose.

The simplest solution is to use gradient.

John
.

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