Synopsis
		sfps2d < Fv.rsf Qp=FQp.rsf > Fw.rsf nb=20 nt= dt= fm=20.0 kt=nt

for computing fractional laplacian instead of fractional time derivative

Parameters
		file Qp= auxiliary input file name   float dt= time sampling interval   float fm=20.0 dominant freq of Ricker wavelet   int kt=nt   int nb=20 thickness of sponge ABC   int nt= number of time steps

Used In
		XJTU          fraclap/ps2d