#include "petscmat.h" PetscErrorCode MatMFFDCheckPositivity(void *dummy,Vec U,Vec a,PetscScalar *h)Logically Collective on Vec
| U | - base vector that is added to | |
| a | - vector that is added | |
| h | - scaling factor on a | |
| dummy | - context variable (unused) |
| -mat_mffd_check_positivity <bool> | - Insure that U + h*a is nonnegative |