# TSThetaGetTheta
Get the abscissa of the stage in (0,1]. 
## Synopsis
```
#include "petscts.h"   
PetscErrorCode TSThetaGetTheta(TS ts, PetscReal *theta)
```
Not Collective


## Input Parameter

- ***ts -*** timestepping context



## Output Parameter

- ***theta -*** stage abscissa



## Note
Use of this function is normally only required to hack TSTHETA to use a modified integration scheme.




## See Also
 `TSThetaSetTheta()`

## Level
Advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/implicit/theta/theta.c.html#TSThetaGetTheta">src/ts/impls/implicit/theta/theta.c</A>

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/tutorials/ex10.c.html">src/ts/tutorials/ex10.c.html</A><BR>

## Implementations

<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/implicit/theta/theta.c.html#TSThetaGetTheta_Theta">TSThetaGetTheta_Theta in src/ts/impls/implicit/theta/theta.c</A><BR>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/ts/impls/implicit/theta/theta.c)


[Index of all TS routines](index.md)  
[Table of Contents for all manual pages](/docs/manualpages/index.md)  
[Index of all manual pages](/docs/manualpages/singleindex.md)  
