Program sffft3d | 3D FFT with centering and Hermitian scaling  
[SYNOPSIS]
sffft3d < Fi.rsf > Fo.rsf ompchunk=1 verb=n inv=n cnt=n axis=0
[PARAMETERS]
int     | axis | =0 |   | 	FFT axis or axes 
bool    | cnt | =n |  [y/n] | 	centering 
bool    | inv | =n |  [y/n] | 	forward/inverse 
int     | ompchunk | =1 |   | 	OpenMP data chunk size 
bool    | verb | =n |  [y/n] | 	verbosity flag 
[DIRECTORY]
user/psava
