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Can I use the spectral decomposition in the fourier transform (fftn) to find function values on a different grid?
Say I have a 2-variable function Z = f(X,Y) on some grid. For instance x =1:3; y=1:3; [X,Y] = meshgrid(x,y); Z = X.^2 + Y.^2; ...
3 years 前 | 1 个回答 | 0