Synopsis
		sffwidir < in.rsf > out.rsf grad0=grad0.rsf grad1=grad1.rsf beta=beta.rsf option=

Parameters
		string beta= auxiliary output file name   file grad0= auxiliary input file name   file grad1= auxiliary input file name   string option= CG update parameter (Polak, Fletcher-Reeves, Fletcher, Dai-Yuan)

Used In
		TCCS          fwiseislet/blend fwiseislet/encoding-spar fwiseislet/encoding fwiseislet/noise-spar fwiseislet/noise fwiseislet/timedomain