Program sfhelm2D_forward | 2D Helmholtz forward solver by LU factorization. 
[SYNOPSIS]
sfhelm2D_forward < in.rsf > out.rsf source=source.rsf uts=0 hermite=n npml=20 order=
[PARAMETERS]
bool    | hermite | =n |  [y/n] | 	Hermite operator 
int     | npml | =20 |   | 	PML width 
string  | order | = |   | 	discretization scheme (default optimal 9-point) 
string  | source | = |   | 	auxiliary input file name
int     | uts | =0 |   | 	
[DIRECTORY]
user/hzhu
