# TSROSWSANDU3
Three stage third order L-stable Rosenbrock scheme By default, the Jacobian is only recomputed once per step.

The third order method is L-stable, but not stiffly accurate.
The second order embedded method is strongly A-stable with R(infty) = 0.5.
The internal stages are L-stable.
This method is called ROS3 in the paper.




## References

- **** -*** Sandu et al, Benchmarking stiff ODE solvers for atmospheric chemistry problems II, Rosenbrock solvers, 1997.



## See Also
 [](chapter_ts), `TSROSW`, `TSROSWRODAS3`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/rosw/rosw.c.html#TSROSWSANDU3">src/ts/impls/rosw/rosw.c</A>


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


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