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I am not so familiar with Fortran, therefore i was wondering if it is possible to convolute two 3-D matrices, either through FFT or direct computation. If it is possible how would one do such a thing in Fortran?

Anand
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  • I'm assuming by "3D matrices" you mean grids of points. Fortran doesn't support FFTs within the standard language, but there are many, many libraries that supply the functionality. FFTW ( https://www.fftw.org/ ) is probably the best known and most widely used. – Ian Bush Jun 10 '22 at 08:21
  • Yes i mean a grid of points with 3D matrices. So this FFTW is a library that i have to call upon in Fortran to perform the FFT? – Anand Jun 10 '22 at 08:37
  • Do you also maybe have a reference to implementation of FFTW ? – Anand Jun 10 '22 at 09:20
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    Yes. The reference is the link in my first comment – Ian Bush Jun 10 '22 at 11:22

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