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# 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
 `SNESLineSearch`, `SNESLineSearchGetOrder()`, `SNESLineSearchSetDamping()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/snes/linesearch/interface/linesearch.c.html#SNESLineSearchSetOrder">src/snes/linesearch/interface/linesearch.c</A>


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[Index of all SNES routines](index.md)  
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