# Vector Operations (Vec) PETSc vectors (`Vec`) are used to store the field variables in PDE-based (or other) simulations. Users guide chapter: [](ch_vectors) Examples
Source files
bvec1.c bvec3.c dvec2.c vseqcr.c bvec2.c
Directories
cupm ftn-kernels kokkos seqviennacl seqviennaclcuda