# VecMean
Computes the arithmetic mean of all the components of a vector. 
## Synopsis
```
#include "petscvec.h" 
PetscErrorCode VecMean(Vec v, PetscScalar *mean)
```
Collective on Vec


## Input Parameter

- ***v -*** the vector



## Output Parameter

- ***mean -*** the result





## See Also
 `VecSum()`, `VecNorm()`

## Level
beginner

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/vec/utils/vinv.c.html#VecMean">src/vec/vec/utils/vinv.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/vec/vec/utils/vinv.c)


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