PETSc version 3.16.5
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# TSGetCostGradients

Returns the gradients from the TSAdjointSolve()

### Synopsis

    #include "petscts.h"
    PetscErrorCode TSGetCostGradients(TS ts,PetscInt *numcost,Vec **lambda,Vec **mu)

Not Collective, but Vec returned is parallel if TS is parallel

### Input Parameter

| ts | - the TS context obtained from TSCreate()

### Output Parameters

| numcost | - size of returned arrays
| lambda | - vectors containing the gradients of the cost functions with respect to the ODE/DAE solution variables
| mu | - vectors containing the gradients of the cost functions with respect to the problem parameters

### See Also

TSSetCostGradients()

### Level

intermediate

### Location

src/ts/interface/sensitivity/tssen.c
Index of all Sensitivity routines
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Index of all manual pages