petsc-3.7.3 2016-07-24
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# TaoComputeJacobianEquality

Computes the Jacobian matrix that has been set with TaoSetJacobianEqualityRoutine().

### Synopsis

    #include "petsctao.h"
    PetscErrorCode TaoComputeJacobianEquality(Tao tao, Vec X, Mat J, Mat Jpre)

Collective on Tao

### Input Parameters

| solver | - the Tao solver context
| xx | - input vector

### Output Parameters

| H | - Jacobian matrix
| Hpre | - Preconditioning matrix

### Notes

Most users should not need to explicitly call this routine, as it is used internally within the minimization solvers.

### See Also

TaoComputeObjective(), TaoComputeObjectiveAndGradient(), TaoSetJacobianStateRoutine(), TaoComputeJacobianDesign(), TaoSetStateDesignIS()

Level:developer
Location: src/tao/interface/taosolver_hj.c
Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages