Synopsis
		sffint < in.rsf > out.rsf warp=warp.rsf adj=n der=n n1= d1=1. o1=0. eps=0.01

adj=0: data(t) and warp(s) and outputs interp(s)=data(warp(s)).

adj=1: interp(s) -> data(t)

Parameters
		bool adj=n [y/n] adjoint flag   float d1=1.   bool der=n [y/n] derivative flag   float eps=0.01 stretch regularization   int n1=   float o1=0.   file warp= auxiliary input file name