GSNESEvaluateJacobianMF

Constructs the application of the system matrix for Newton's equation

#include "petscsnes.h" 
#include "gsolver.h" 
int GSNESEvaluateJacobianMF(GSNES snes, GVec x, GVec y, GVec f, void *ctx)

Collective on GSNES

	snes	- The grid SNES
	x	- The current iterate
	y	- The vector to which to apply the Jacobian
	ctx	- The optional user context

f -The vector J(x) y

grid SNES< jacobian, mf