# NEPComputeJacobian

Computes the Jacobian matrix T'(lambda) that has been set with NEPSetJacobian().

### Synopsis

    #include "slepcnep.h"
    PetscErrorCode NEPComputeJacobian(NEP nep,PetscScalar lambda,Mat *A,MatStructure *flg)

Collective on NEP and Mat

### Input Parameters

| nep | - the NEP context
| lambda | - the scalar argument

### Output Parameters

| A | - Jacobian matrix
| flg | - flag indicating matrix structure (see MatStructure enum)

### Notes

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

### See Also

NEPSetJacobian(), NEPGetJacobian()

Location: src/nep/interface/nepsolve.c
Index of all NEP routines
Table of Contents for all manual pages
Index of all manual pages