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# MatSetValueLocal
Inserts or adds a single value into a matrix, using a local numbering of the nodes. Not Collective


## Input Parameters

- ***m -*** the matrix
- ***i -*** the row location of the entry
- ***j -*** the column location of the entry
- ***va -*** the value to insert
- ***mode -*** either `INSERT_VALUES` or `ADD_VALUES`





## Notes
For efficiency one should use `MatSetValuesLocal()` and set several values simultaneously.

See notes for `MatSetValuesLocal()` for additional information on when and how this function can be used.


## See Also
 [](ch_matrices), `MatSetValue()`, `MatSetValuesLocal()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/include/petscmat.h.html#MatSetValueLocal">include/petscmat.h</A>


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