# TSAlphaGetParams
gets the algorithmic parameters for `TSALPHA` 
## Synopsis
```
#include "petscts.h"   
PetscErrorCode TSAlphaGetParams(TS ts, PetscReal *alpha_m, PetscReal *alpha_f, PetscReal *gamma)
```
Not Collective


## Input Parameter

- ***ts -*** timestepping context



## Output Parameters

- ***\alpha_m -*** algorithmic parameter
- ***\alpha_f -*** algorithmic parameter
- ***\gamma   -*** algorithmic parameter





## Note
Use of this function is normally only required to hack `TSALPHA` to
use a modified integration scheme. Users should call
`TSAlphaSetRadius()` to set the high-frequency damping (i.e. spectral
radius of the method) in order so select optimal values for these
parameters.


## See Also
 [](chapter_ts), `TS`, `TSALPHA`, `TSAlphaSetRadius()`, `TSAlphaSetParams()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/implicit/alpha/alpha1.c.html#TSAlphaGetParams">src/ts/impls/implicit/alpha/alpha1.c</A>

## Implementations

<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/implicit/alpha/alpha1.c.html#TSAlphaGetParams_Alpha">TSAlphaGetParams_Alpha in src/ts/impls/implicit/alpha/alpha1.c</A><BR>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/ts/impls/implicit/alpha/alpha1.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)  
