Program sfwexwfl | 3-D wavefield extrapolation with extended SSF 
[SYNOPSIS]
sfwexwfl slo=Fs.rsf < Fd.rsf > Fw.rsf verb=n eps=0.01 datum=0 inv=1 causal=n nrmax=1 dtmax=0.004 pmx=0 pmy=0 tmx=0 tmy=0
[PARAMETERS]
bool    | causal | =n |  [y/n] | 	causality flag 
int     | datum | =0 |   | 	datuming flag 
float   | dtmax | =0.004 |   | 	max time error 
float   | eps | =0.01 |   | 	stability parameter 
int     | inv | =1 |   | 	down/upward flag 
int     | nrmax | =1 |   | 	maximum references 
int     | pmx | =0 |   | 	padding on x 
int     | pmy | =0 |   | 	padding on y
file    | slo | = |   | 	auxiliary input file name
int     | tmx | =0 |   | 	taper on x
int     | tmy | =0 |   | 	taper on y 
bool    | verb | =n |  [y/n] | 	verbosity flag 
[DIRECTORY]
user/cwp
