# Nonlinear Solvers (SNES) The Scalable Nonlinear Equations Solvers (`SNES`) component provides an easy-to-use interface to Newton-type, quasi-Newton, full approximation scheme (FAS) multigrid, and other methods for solving systems of nonlinear equations. User guide chapter: [](ch_snes). `SNES` internally employs `KSP` for the solution of its linear systems. `SNES` users can also set `KSP` options directly in application codes by first extracting the `KSP` context from the `SNES` context via `SNESGetKSP()` and then directly calling various `KSP` (and `PC`) routines, Examples

noise/
saws/
dlregissnes.c
snes.c
snesj2.c
snesj.c
snesob.c
snespc.c
snesregi.c
snesut.c