Synopsis
		sfcosft < in.rsf > out.rsf sign#=0

The input and output are real and have the same dimensions.
Pad the data if you need to suppress wrap-around effects.

Parameters
		int sign#=0 transform along #-th dimension [+1 forward or -1 backward]

Used In
		BEI          dwnc/phasemod dwnc/vofz dwnc/sigmoid   GEO384W          hw3/image   GEO391          hw4/dunes   JSG          diffr/chan3d diffr/gom diffr/fault shape/beivc   RSF          su/rsfscales   SEP          bspl/stolt forwd/stolt stoltst/elfst stoltst/imps vc2/elfvc vc2/vcspk vc2/beivc vc2/sigvc velspec/impls velspec/sigvc