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# TSROSWTHETA1
One stage first order L-stable Rosenbrock-W scheme (aka theta method). Only an approximate Jacobian is needed.




## See Also
 [](ch_ts), `TSROSW`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/rosw/rosw.c.html#TSROSWTHETA1">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](/manualpages/index.md)  
[Index of all manual pages](/manualpages/singleindex.md)  
