sfderiv (4.2-git)
index
system/generic/Mderiv.c
First derivative with a maximally linear FIR differentiator.

 
Synopsis
        sfderiv < in.rsf > out.rsf order=6 scale=n

May 2012 program of the month:
http://ahay.org/blog/2012/05/01/program-of-the-month-sfderiv/

 
Parameters
       
 
int order=6
filter order
 
bool scale=n [y/n]
if scale by 1/dx