# TSHasTransientVariable
determine whether transient variables have been set 
## Synopsis
```
#include "petscts.h"  
PetscErrorCode TSHasTransientVariable(TS ts, PetscBool *has)
```
Logically Collective


## Input Parameters

- ***ts -*** TS on which to compute



## Output Parameters

- ***has -*** `PETSC_TRUE` if transient variables have been set





## See Also
 [](chapter_ts), `TS`, `TSBDF`, `DMTSSetTransientVariable()`, `TSComputeTransientVariable()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/interface/ts.c.html#TSHasTransientVariable">src/ts/interface/ts.c</A>


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