Synopsis
		sfconjgrad < dat.rsf mod0=mod.rsf mwt=mwt.rsf known=known.rsf mod0=x0.rsf > to.rsf < from.rsf > out.rsf niter=1

Parameters
		string known= auxiliary input file name   string mod0= auxiliary input file name   string mwt= auxiliary input file name   int niter=1 number of iterations

Used In
		BEI          vela/stack