Program sflagrange | A forward interpolation using Lagrange method. 
[SYNOPSIS]
sflagrange < in.rsf > out.rsf ox=o1 dx=d1 nx=n1
[COMMENTS]
Specify ox= dx= nx=

[PARAMETERS]
float   | dx | =d1 |   | 	
int     | nx | =n1 |   | 	
float   | ox | =o1 |   | 	
[DIRECTORY]
user/chenyk
