# Overview

PETSc, the Portable, Extensible Toolkit for Scientific Computation,
includes a large suite of scalable parallel **linear and nonlinear
equation solvers, ODE integrators, and optimization algorithms** for application codes written in
C, C++, Fortran, and Python. In addition, PETSc includes support for
managing parallel PDE discretizations including parallel matrix and vector assembly routines. {any}`doc_toolkits_use_petsc`.

```{toctree}
:maxdepth: 2

nutshell
features
gpu_roadmap
vector_table
matrix_table
linear_solve_table
nonlinear_solve_table
integrator_table
tao_solve_table
discrete_table
plex_transform_table
../manual/index
../manualpages/index
../changes/index
../manualpages/singleindex
previous_release_docs
```