Program sfacoustic1D_FWI_adj | 1-D acoustic FWI with adjoint state method
[SYNOPSIS]
sfacoustic1D_FWI_adj < Frec.rsf vel=Fvel.rsf src=Fsrc.rsf gradient=Fgradient.rsf > Fvel_recover.rsf verb=n sx= rx= niter=
[PARAMETERS]
file    | gradient | = |   | 	auxiliary output file name
int     | niter | = |   | 	iteration number
int     | rx | = |   | 	reciever position
file    | src | = |   | 	auxiliary input file name
int     | sx | = |   | 	source position
file    | vel | = |   | 	auxiliary input file name
bool    | verb | =n |  [y/n] | 	verbosity 
[DIRECTORY]
user/carrot
