Synopsis
		sffactorn < in.rsf > out.rsf dip=dip.rsf mask=mask.rsf eps=0.001 nt= nx= npx=100 npy=100 niter=10 miter=10

Parameters
		file dip= auxiliary input file name   float eps=0.001   file mask= auxiliary input file name   int miter=10 number of interpolation iterations   int niter=10 number of factorization iterations   int npx=100   int npy=100   int nt=   int nx=

Used In
		SEP          plane/qint