Program sflevint | Leveler inverse interpolation in 1-D. 
[SYNOPSIS]
sflevint < in.rsf > out.rsf nx= x0= dx= niter=1+m1*3/2 eps=0.2 na=3 head=
[PARAMETERS]
float   | dx | = |   | 	grid sampling 
float   | eps | =0.2 |   | 	regularization parameter 
string  | head | = |   | 	
int     | na | =3 |   | 	
int     | niter | =1+m1*3/2 |   | 	number of conjugate-gradient iterations 
int     | nx | = |   | 	number of bins 
float   | x0 | = |   | 	grid origin 
[DIRECTORY]
user/gee
