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# MatKAIJGetScaledIdentity
Check if both `S` and `T` are scaled identities. 
## Synopsis
```
#include "petscmat.h" 
PetscErrorCode MatKAIJGetScaledIdentity(Mat A, PetscBool *identity)
```
Logically Collective.


## Input Parameter

- ***A -*** the `MATKAIJ` matrix



## Output Parameter

- ***identity -*** the Boolean value





## See Also
 [](ch_matrices), `Mat`, `MATKAIJ`, `MatKAIJGetS()`, `MatKAIJGetT()`

## Level
Advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/mat/impls/kaij/kaij.c.html#MatKAIJGetScaledIdentity">src/mat/impls/kaij/kaij.c</A>

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/ksp/tutorials/ex77.c.html">src/ksp/ksp/tutorials/ex77.c</A><BR>


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


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