# Linear Solvers and Krylov Methods (KSP) The `KSP` class provides an easy-to-use interface to the combination of a Krylov subspace iterative method and a preconditioner `PC` for the solution of linear systems and some least squares problems. See `PETSCREGRESSORLINEAR` for additional regression (least squares) solvers. Examples

Source files

itres.c
xmon.c
dlregisksp.c
eige.c
itregis.c
dmksp.c
iguess.c
itcl.c
itcreate.c
iterativ.c
itfunc.c

Directories

ftn-custom
saws