:orphan:
# SNESFASRestrict
restrict a `Vec` to the next coarser level 
## Synopsis
```
#include "petscsnes.h"  
PetscErrorCode SNESFASRestrict(SNES fine, Vec Xfine, Vec Xcoarse)
```
Collective


## Input Parameters

- ***fine -*** `SNES` from which to restrict
- ***Xfine -*** vector to restrict



## Output Parameter

- ***Xcoarse -*** result of restriction





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

## Level
developer

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


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