MATLAB: Does the FFT function in MATLAB 6.5 (R13) use the FFTW library routines

cfftfftwimplementationlibraryMATLABroutines

Does the FFT function in MATLAB 6.5 (R13) use the FFTW library routines?

Best Answer

The FFTW routines are a set of C library routines to compute the DFT of real and complex signals. For more information on these routines, please refer to the following URL:
http://www.fftw.org
The MATLAB FFT function does, in fact, use the FFTW routines. The three specific library routines used by the MATLAB FFT are:
 fftw_create_plan 
 fftw_one
 rfftw_one
The version of the FFTW library routines used is 2.1.3.
Related Question