Synopsis
		sfwexmva slo=Bs.rsf < Pi.rsf < Ps.rsf swfl=Bws.rsf rwfl=Bwr.rsf cc=Fc.rsf verb=y adj= feic= eps=0.01 nrmax=1 dtmax=0.004 pmx=0 pmy=0 tmx=0 tmy=0 nhx=0 nhy=0 nhz=0 nht=0 dht=

Parameters
		int adj= y=ADJ Back-projection; n=FWD Forward Scattering   file cc= auxiliary input file name   float dht=   float dtmax=0.004 max time error   float eps=0.01 stability parameter   int feic= extended I.C. flag   int nht=0 number of lags on the t axis   int nhx=0 number of lags on the x axis   int nhy=0 number of lags on the y axis   int nhz=0 number of lags on the z axis   int nrmax=1 max number of refs   int pmx=0 padding on x   int pmy=0 padding on y   file rwfl= auxiliary input file name   file slo= auxiliary input file name   file swfl= auxiliary input file name   int tmx=0 taper on x   int tmy=0 taper on y   bool verb=y [y/n] verbosity flag