Program sfweas1 | 1-D analytic solution for acoustic wave equation 
[SYNOPSIS]
sfweas1 < Fin.rsf > Fout.rsf vel= nx= dx= spx= kt= ox=0.0 rule=
[PARAMETERS]
float   | dx | = |   | 	
int     | kt | = |   | 	selected time
int     | nx | = |   | 	
float   | ox | =0.0 |   | 	
string  | rule | = |   | 	t, s : quadrature rules 
int     | spx | = |   | 	source point in x
float   | vel | = |   | 	
[DIRECTORY]
user/fangg
