# Matrix Operations (Mat) PETSc matrices (`Mat` objects) are used to store Jacobians and other sparse matrices in PDE-based (or other) simulations. Users guide chapter: [](ch_matrices). See also [](../MatGraphOperations/index). Examples

Source files

fdmpiaij.c
mpb_aij.c
mpiaijpc.c
mpimattransposematmult.c
mpimatmatmatmult.c
mpiov.c
mpiaij.c
mpiaij.h
mpihashmat.h
mmaij.c
mpimatmatmult.c
mpiptap.c

Directories

aijmkl
aijperm
aijsell
crl
kokkos
mkl_cpardiso
mpicusparse
mpihipsparse
mpiviennacl
mpiviennaclcuda
mumps
pastix
strumpack
superlu_dist