Program sfndsmooth | N-D non-stationary triangle smoothing derivative. 
[SYNOPSIS]
sfndsmooth < in.rsf > out.rsf ider=1 repeat=1 nderiv=6 rect#= shift#=
[PARAMETERS]
int     | ider | =1 |   | 	direction of the derivative (0 means no derivative) 
int     | nderiv | =6 |   | 	derivative filter accuracy 
string  | rect# | = |   | 	size of the smoothing stencil in #-th dimension /auxiliary input file/ 
int     | repeat | =1 |   | 	repeat smoothing several times 
string  | shift# | = |   | 	shifting of the smoothing stencil in #-th dimension /auxiliary input file/ 
[DIRECTORY]
user/reem
