:orphan:
# PCBDDCSetChangeOfBasisMat
Set user defined change of basis for dofs
## Synopsis
```
#include "petscpc.h"
PetscErrorCode PCBDDCSetChangeOfBasisMat(PC pc, Mat change, PetscBool interior)
```
Collective
## Input Parameters
- ***pc -*** the preconditioning context
- ***change -*** the change of basis matrix
- ***interior -*** whether or not the change of basis modifies interior dofs
## See Also
`PCBDDC`
## Level
intermediate
## Location
src/ksp/pc/impls/bddc/bddc.c
## Implementations
PCBDDCSetChangeOfBasisMat_BDDC in src/ksp/pc/impls/bddc/bddc.c
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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/ksp/pc/impls/bddc/bddc.c)
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