petsc-3.7.7 2017-09-25
   
MatMFFDGetH
Gets the last value that was used as the differencing parameter. 
Synopsis
#include "petscmat.h"   
PetscErrorCode  MatMFFDGetH(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(),MatMFFDSetHHistory(), MatCreateMFFD(), MATMFFD, MatMFFDResetHHistory()
Level:advanced
Location:src/mat/impls/mffd/mffd.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages