MatSNESMFGetH

Gets the last value that was used as the differencing parameter.

Synopsis

#include "petscsnes.h"   
int MatSNESMFGetH(Mat mat,PetscScalar *h)
Not Collective

Input Parameters

mat -the matrix obtained with MatCreateSNESMF()

Output Paramter

h -the differencing step size

Keywords

SNES, matrix-free, parameters

See Also

MatCreateSNESMF(),MatSNESMFSetHHistory(),
MatSNESMFResetHHistory(),MatSNESMFKSPMonitor()

Level:advanced
Location:
src/snes/mf/snesmfj.c
Index of all SNESMF routines
Table of Contents for all manual pages
Index of all manual pages