Synopsis
		sfhalfint < in.rsf > out.rsf adj=n inv=n rho=1.-1./n1

December 2012 program of the month:
http://ahay.org/blog/2012/12/23/program-of-the-month-sfhalfint/

Parameters
		bool adj=n [y/n] If y, apply adjoint   bool inv=n [y/n] If y, do differentiation instead of integration   float rho=1.-1./n1 Leaky integration constant

Used In
		BEI          ft1/hankel trimo/mig trimo/mod   GALLERY          constant/lowrank gradient/fakirmig vofz/lowrank   GEO384W          hw4/synth   JLU          gvdseisint/ocmodel txyapf/french   SEP          angle/agmig antial/mod antial/sig oc2/cup passive/synth vc2/beivc vc2/elfvc vc2/sigvc   TCCS          eikods/migration fraclapl/diffq