Synopsis
		sfsigmoid > mod.rsf n1=400 n2=100 large=5*n1 o1=0. o2=0. d1=0.004 d2=0.032 taper=y

Parameters
		float d1=0.004   float d2=0.032   int large=5*n1 reflectivity series   int n1=400 vertical axis   int n2=100 horizontal axis   float o1=0.   float o2=0.   bool taper=y [y/n] if taper the edges

Used In
		BEI          dwnc/sigmoid krch/sep73   GEE          lmn/sep73   JSG          flat/flat fpwd/sigmoid seislet/seis shape/lomo strfilter/spray   SEP          antial/sig pwd/lomo stack/miginv vc2/sigvc vc2/spec vc2/vcmod velspec/sigvc   SLIM          slimUserManual/sffdct