Simplified fourier transform of double real periodic sequences.
They are simplified but slower versions of dffti/dfftf/dfftb.
Notes
There will not be a simplified interface like (i)fft for dzfft routines, we already have a simplified (i)rfft based on dfft routines, both dzfft and dfft are for real types.
Based on the information obtained from the original document doc, dfft should be more efficient than dzfft, and maybe we will verify and test this in the end.
dzffti/dzfftf/dzfftbinterfacesDescription
Simplified fourier transform of double real periodic sequences. They are simplified but slower versions of
dffti/dfftf/dfftb.Notes
There will not be a simplified interface like
(i)fftfordzfftroutines, we already have a simplified(i)rfftbased ondfftroutines, bothdzfftanddfftare forrealtypes. Based on the information obtained from the original documentdoc,dfftshould be more efficient thandzfft, and maybe we will verify and test this in the end.