Synopsis
		sfstolt2 < in.rsf > out.rsf vel= pad=nt nf=2

Requires the input to be cosine-transformed over the lateral axes.

Parameters
		int nf=2 Interpolation accuracy   int pad=nt padding on the time axis   float vel= Constant velocity (use negative velocity for modeling)

Used In
		SEP          bspl/stolt forwd/stolt