# SNESFASCycleGetCorrection
Gets the coarse correction FAS context for this level 
## Synopsis
```
#include "petscsnes.h"  
PetscErrorCode SNESFASCycleGetCorrection(SNES snes, SNES *correction)
```
Logically Collective


## Input Parameter

- ***snes   -*** the `SNESFAS` nonlinear multigrid context



## Output Parameter

- ***correction -*** the coarse correction solve on this level



## Note
Returns NULL on the coarsest level.




## See Also
 `SNESFAS` `SNESFASCycleGetSmootherUp()`, `SNESFASCycleGetSmoother()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/snes/impls/fas/fasfunc.c.html#SNESFASCycleGetCorrection">src/snes/impls/fas/fasfunc.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/snes/impls/fas/fasfunc.c)


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