BenMatok
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 Jan 19 awarded Teacher Jan 7 comment Need numerical approximation for Fourier{max(0,f(x,y))} given Fourier{f(x,y)} thank you, It does seem like there is no easy trick to actually gain computation time here. If by chance you know any example for a non linear operartion that does have some specific trick, I would love to hear about it. Jan 7 awarded Supporter Jan 7 comment Need numerical approximation for Fourier{max(0,f(x,y))} given Fourier{f(x,y)} @PavelM, thank you for pointing out the error, it seems I am lacking some theoretical background, do you have a good source on non linear transforms? Jan 7 accepted Need numerical approximation for Fourier{max(0,f(x,y))} given Fourier{f(x,y)} Jan 6 revised Need numerical approximation for Fourier{max(0,f(x,y))} given Fourier{f(x,y)} edited body; edited title Jan 6 revised Need numerical approximation for Fourier{max(0,f(x,y))} given Fourier{f(x,y)} added 1422 characters in body; edited title Jan 5 asked Need numerical approximation for Fourier{max(0,f(x,y))} given Fourier{f(x,y)} Jan 5 comment Rate of convergence for a many point object ( function or surface ). do you have any document\article using these methods to determine the rate of convergence of something? ( post it as an aswer and I will accept it ) Jan 4 asked Rate of convergence for a many point object ( function or surface ). Jan 2 answered Mind-blowing mathematics experiments Dec 31 awarded Student Dec 31 comment Fourier Transform of an Operator Thank you very much! Dec 31 awarded Scholar Dec 31 accepted Fourier Transform of an Operator Dec 31 awarded Editor Dec 31 comment Fourier Transform of an Operator yes we may assume the operator is linear. Dec 31 revised Fourier Transform of an Operator added 163 characters in body Dec 31 asked Fourier Transform of an Operator