:orphan:
# SNESFASSetRScale
Sets the scaling factor of the restriction operator from level l to l-1. 
## Synopsis
```
#include "petscsnes.h"  
PetscErrorCode SNESFASSetRScale(SNES snes, PetscInt level, Vec rscale)
```

## Input Parameters

- ***snes   -*** the `SNESFAS` nonlinear multigrid context
- ***rscale -*** the restriction scaling
- ***level  -*** the level (0 is coarsest) to supply [Do not supply 0]





## Note
This is only used in the case that the injection is not set.


## See Also
 `SNESFAS`, `SNESFASSetInjection()`, `SNESFASSetRestriction()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/snes/impls/fas/fasfunc.c.html#SNESFASSetRScale">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](/manualpages/index.md)  
[Index of all manual pages](/manualpages/singleindex.md)