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Question: 2D Fourier transform

Question:2D Fourier transform

Alger 524
surface discrete-fourier-transform interpolate
March 27 2015
1

Dear all,

I know how interpolating curves using 1D Fourier tranform.

see http://www.mapleprimes.com/questions/121551-Fourier-Serie-And-Discrete-Fourier-Transform

How to use 2D Fourier transform to find a 2D Fourier series to interpolate surfaces as:

f := proc (x, y) options operator, arrow; sin(x)^2+cos(y)^2 end proc

plot3d(f(x, y), x = 0 .. Pi, y = 0 .. Pi)

Or surface data [x,y,f(x,y)].

Thank you
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