# TAOLINESEARCHARMIJO
Backtracking line-search that satisfies only the (nonmonotone) Armijo condition (i.e., sufficient decrease). Armijo line-search type can be selected with "-tao_ls_type armijo".




## See Also
 `TaoLineSearchCreate()`, `TaoLineSearchSetType()`, `TaoLineSearchApply()`


## Keywords
 Tao, linesearch

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/linesearch/impls/armijo/armijo.c.html#TAOLINESEARCHARMIJO">src/tao/linesearch/impls/armijo/armijo.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/tao/linesearch/impls/armijo/armijo.c)


[Index of all TaoLineSearch routines](index.md)  
[Table of Contents for all manual pages](/docs/manualpages/index.md)  
[Index of all manual pages](/docs/manualpages/singleindex.md)  
