int SNESComputeJacobian(SNES snes,Vec X,Mat *A,Mat *B,MatStructure *flg)Collective on SNES and Mat
snes | - the SNES context |
x | - input vector |
A | - Jacobian matrix |
B | - optional preconditioning matrix |
flag | - flag indicating matrix structure |
See SLESSetOperators() for important information about setting theflag parameter.
SNESComputeJacobian() is valid only for SNES_NONLINEAR_EQUATIONSmethods. An analogous routine for SNES_UNCONSTRAINED_MINIMIZATIONmethods is SNESComputeHessian().
Location: src/snes/interface/snes.c
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