Synopsis
		sffftwave1 < inp.rsf > out.rsf prop=prop.rsf right=right.rsf left=left.rsf nt= dt= sub=y step=y

Parameters
		float dt=   string left= auxiliary input file name   int nt=   file prop= auxiliary input file name   string right= auxiliary input file name   bool step=y [y/n] if two-step propagation   bool sub=y [y/n] if -1 is included in the matrix

Used In
		JSG          lowrank/fio