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# PCFactorGetShiftType
Gets the type of shift, if any, done when a zero pivot is detected 
## Synopsis
```
#include "petscpc.h" 
PetscErrorCode PCFactorGetShiftType(PC pc, MatFactorShiftType *type)
```
Not Collective


## Input Parameter

- ***pc -*** the preconditioner context



## Output Parameter

- ***type -*** one of `MAT_SHIFT_NONE`, `MAT_SHIFT_NONZERO`, `MAT_SHIFT_POSITIVE_DEFINITE`, or `MAT_SHIFT_INBLOCKS`





## See Also
 `PCLU`, `PCCHOLESKY`, `PCFactorSetShiftType()`, `MatFactorShiftType`, `PCFactorSetShiftAmount()`, `PCFactorGetShiftAmount()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/pc/impls/factor/factor.c.html#PCFactorGetShiftType">src/ksp/pc/impls/factor/factor.c</A>

## Implementations

<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/pc/impls/factor/factimpl.c.html#PCFactorGetShiftType_Factor">PCFactorGetShiftType_Factor in src/ksp/pc/impls/factor/factimpl.c</A><BR>


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


[Index of all PC routines](index.md)  
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[Index of all manual pages](/manualpages/singleindex.md)