:orphan: # MATSCHURCOMPLEMENT "schurcomplement" - Matrix type that behaves like the Schur complement of a matrix. ## See Also [](ch_matrices), `Mat`, `MatCreate()`, `MatType`, `MatCreateSchurComplement()`, `MatSchurComplementComputeExplicitOperator()`, `MatSchurComplementGetSubMatrices()`, `MatSchurComplementGetKSP()` ## Level intermediate ## Location src/ksp/ksp/utils/schurm/schurm.c --- [Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/ksp/ksp/utils/schurm/schurm.c) [Index of all KSP routines](index.md) [Table of Contents for all manual pages](/manualpages/index.md) [Index of all manual pages](/manualpages/singleindex.md)