Synopsis
		sfttifd2d < Fwav.rsf vel=Fvel.rsf sou=Fsou.rsf rec=Frec.rsf ang=Fang.rsf wfl=Fwfl.rsf > Fdat.rsf verb=n snap=n free=n expl=n dabc=n sout=n uses=n jdata=1 jsnap=nt nqz=sf_n(az) nqx=sf_n(ax) oqz=sf_o(az) oqx=sf_o(ax) atype=

Parameters
		file ang= auxiliary input file name   string atype=   bool dabc=n [y/n] absorbing BC   bool expl=n [y/n] "exploding reflector"   bool free=n [y/n] free surface   int jdata=1   int jsnap=nt   int nqx=sf_n(ax)   int nqz=sf_n(az)   float oqx=sf_o(ax)   float oqz=sf_o(az)   file rec= auxiliary input file name   bool snap=n [y/n] wavefield snapshots   file sou= auxiliary input file name   bool sout=n [y/n] stress output   bool uses=n [y/n] use vsz   file vel= auxiliary input file name   bool verb=n [y/n] verbosity   file wfl= auxiliary output file name