Synopsis
		sffft3 < in.rsf > out.rsf inv=n sym=n sign=inv? 1: 0 opt=y axis=2 pad=2

Input and output are complex data. The input is padded by factor pad.

Parameters
		int axis=2 Axis to transform   bool inv=n [y/n] if y, perform inverse transform   bool opt=y [y/n] if y, determine optimal size for efficiency   int pad=2 padding factor   int sign=inv? 1: 0 transform sign (0 or 1)   bool sym=n [y/n] if y, apply symmetric scaling to make the FFT operator Hermitian

Used In
		BEI          ft1/ft2d ft1/plane4 ft1/brad   GEE          lsq/antoine   GEO384W          hw5/hyper   GEO391          hw2/fourier hw3/pocs   GEOSTATS          atten/random atten/vvdata atten/karman2 simulate/rfield simulate/simple spatial_stats/gr_variogram spatial_stats/variogram spatial_stats/covariance spatial_stats/correlogram   JSG          pwc/cmp   RSF          scons/rsfpy   SEP          fkamo/impresp oc2/ocimp velspec/sigvc