#include "petscsnes.h" PetscErrorCode SNESQNSetType(SNES snes, SNESQNType qtype)Logically Collective on SNES
| snes | - the iterative context | |
| qtype | - variant type | 
| -snes_qn_type <lbfgs,broyden,badbroyden> | 
| SNES_QN_LBFGS | - LBFGS variant | |
| SNES_QN_BROYDEN | - Broyden variant | |
| SNES_QN_BADBROYDEN | - Bad Broyden variant |