put in f derivatives except for hessian

JumpReg
---- 64 x 64 ----
Convergence: -0.312367486809

---- 128 x 128 ----
Convergence: 6.30142253663

---- 256 x 256 ----
Convergence: 1.27081200004

---- 512 x 512 ----
Convergence: 1.78207009301
.