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# SNESLINESEARCHSHELL

Provides an API for a user-provided line search routine. Any of the other line searches may serve as a guide to how this is to be done. There is also a basic template in the documentation for `SNESLineSearchShellSetApply()`.

## See Also

SNES: Nonlinear Solvers, `SNESLineSearch`, `SNES`, `SNESLineSearchCreate()`, `SNESLineSearchSetType()`, `SNESLineSearchShellSetApply()`, `SNESLineSearchShellApplyFn`

## Level

advanced

## Location

src/snes/linesearch/impls/shell/linesearchshell.c

Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages