:orphan: # 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 src/ts/impls/rosw/rosw.c --- [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)