petsc-3.14.5 2021-03-03
Report Typos and Errors

# SNESLineSearchSetOrder

Sets the maximum order of the polynomial fit used in the line search

### Synopsis

    #include "petscsnes.h"
    PetscErrorCode  SNESLineSearchSetOrder(SNESLineSearch linesearch,PetscInt order)

### Input Parameters

| linesearch | - linesearch context
| order | - The damping parameter

### Possible Values for order

| 1 or SNES_LINESEARCH_ORDER_LINEAR | - linear order
| 2 or SNES_LINESEARCH_ORDER_QUADRATIC | - quadratic order
| 3 or SNES_LINESEARCH_ORDER_CUBIC | - cubic order

### Notes

### Variable orders are supported by the following line searches

| bt | - cubic and quadratic
| cp | - linear and quadratic

### See Also

SNESLineSearchGetOrder(), SNESLineSearchSetDamping()

### Level

intermediate

### Location

src/snes/linesearch/interface/linesearch.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages