# TAOLINESEARCHMT
Line-search type with cubic interpolation that satisfies both the sufficient decrease and curvature conditions. This method can take step lengths greater than 1. More-Thuente line-search can be selected with "-tao_ls_type more-thuente".


## References

- **** -*** JORGE J. MORE AND DAVID J. THUENTE, LINE SEARCH ALGORITHMS WITH GUARANTEED SUFFICIENT DECREASE.
ACM Trans. Math. Software 20, no. 3 (1994): 286-307.





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


## Keywords
 Tao, linesearch

## Level
developer

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


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