Library

Getting different output when using FFTW3 Library than using Rosetta FFT

Getting different output when using FFTW3 Library than using Rosetta FFT
  1. What is the most common library for FFT?
  2. What is fftw3f?

What is the most common library for FFT?

FFTW is the most popular FFT library. It has planty of features and it's often used as the reference point, but a number of other libraries has comparable or better performance.

What is fftw3f?

FFTW is a subroutine library written in C for computing the Discrete Fourier Transform in one or more dimensions, of both real and complex data, of arbitrary input size.

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