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In mathcad there are two functions: cfft and icfft. I need the same in my java code. It should work for 1d and 2d arrays.

Anyone know any java libraries for it? I tried to use Appache Common Math FastFourierTransformer class, but the length of the data set to be a power of 2.

z17
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1 Answers1

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Check whether JTransforms suits your needs. It is quite known, very fast implementation.

lukeg
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  • I tried it too, but I got a different result for the same data in mathcad and this library. – z17 Feb 24 '17 at 19:45