Synopsis
		sfrwe2d rwf=rwfile.rsf swf=swfile.rsf vel=velfile.rsf rays=rays.rsf image=imfile.rsf Rimage=Rimage.rsf forward=0. nref=256 verbose=n kinematic=y norm=1 nsx=3 nsz=3 xmin=ax%o xmax=(ax%n-1 zmax=(az%n-1 dxx=ax%d

Parameters
		file Rimage= auxiliary output file name   dxx=ax%d call from_par("dzz",dzz,az%d)   forward=0. Forward scattering option   file image= auxiliary output file name   kinematic=y Kinematic approximation   norm=1 Whether (1) or not (0) to normalize by gnorm   nref=256 starting number of points for calculating reference velocities   nsx=3   nsz=3   file rays= auxiliary input file name   file rwf= auxiliary input file name   file swf= auxiliary input file name   file vel= auxiliary input file name   verbose=n level of verbosity   xmax=(ax%n-1   xmin=ax%o call from_par("zmin",zmin,az%o)   zmax=(az%n-1