Synopsis
		sfclfdc1 < velf.rsf > outm.rsf seed=time(NULL eps=1.e-4 npk=20 dt= SIZE= mode=0 perc=50 cpxexp=true

Parameters
		SIZE= stencil size   cpxexp=true complex exponential   dt= time step   eps=1.e-4 tolerance   mode=0 symbol   npk=20 maximum rank   perc=50 cutoff percentage   seed=time(NULL