# PetscDSHasDynamicJacobian
Signals that a dynamic Jacobian, dF/du_t, has been set 
## Synopsis
```
#include "petscds.h" 
PetscErrorCode PetscDSHasDynamicJacobian(PetscDS ds, PetscBool *hasDynJac)
```
Not collective


## Input Parameter

- ***ds -*** The `PetscDS`



## Output Parameter

- ***hasDynJac -*** flag that pointwise function for dynamic Jacobian has been set





## See Also
 `PetscDS`, `PetscDSGetDynamicJacobian()`, `PetscDSSetDynamicJacobian()`, `PetscDSGetJacobian()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/dt/interface/dtds.c.html#PetscDSHasDynamicJacobian">src/dm/dt/interface/dtds.c</A>


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