:orphan:
# TSSetUp
Sets up the internal data structures for the later use of a timestepper.
## Synopsis
```
#include "petscts.h"
PetscErrorCode TSSetUp(TS ts)
```
Collective
## Input Parameter
- ***ts -*** the `TS` context obtained from `TSCreate()`
## Note
For basic use of the `TS` solvers the user need not explicitly call
`TSSetUp()`, since these actions will automatically occur during
the call to `TSStep()` or `TSSolve()`. However, if one wishes to control this
phase separately, `TSSetUp()` should be called after `TSCreate()`
and optional routines of the form TSSetXXX(), but before `TSStep()` and `TSSolve()`.
## See Also
[](ch_ts), `TSCreate()`, `TS`, `TSStep()`, `TSDestroy()`, `TSSolve()`
## Level
advanced
## Location
src/ts/interface/ts.c
## Examples
src/ts/tutorials/ex1.c
src/ts/tutorials/ex17.c
src/ts/tutorials/ex1f.F90
src/ts/tutorials/ex28.c
src/ts/tutorials/ex42.c
src/ts/tutorials/ex53.c
## Implementations
TSSetUp_ARKIMEX in src/ts/impls/arkimex/arkimex.c
TSSetUp_BDF in src/ts/impls/bdf/bdf.c
TSSetUp_EIMEX in src/ts/impls/eimex/eimex.c
TSSetUp_Euler in src/ts/impls/explicit/euler/euler.c
TSSetUp_RK in src/ts/impls/explicit/rk/rk.c
TSSetUp_SSP in src/ts/impls/explicit/ssp/ssp.c
TSSetUp_GLEE in src/ts/impls/glee/glee.c
TSSetUp_Alpha in src/ts/impls/implicit/alpha/alpha1.c
TSSetUp_Alpha in src/ts/impls/implicit/alpha/alpha2.c
TSSetUp_DiscGrad in src/ts/impls/implicit/discgrad/tsdiscgrad.c
TSSetUp_GLLE in src/ts/impls/implicit/glle/glle.c
TSSetUp_IRK in src/ts/impls/implicit/irk/irk.c
TSSetUp_Sundials in src/ts/impls/implicit/sundials/sundials.c
TSSetUp_Theta in src/ts/impls/implicit/theta/theta.c
TSSetUp_BEuler in src/ts/impls/implicit/theta/theta.c
TSSetUp_CN in src/ts/impls/implicit/theta/theta.c
TSSetUp_Mimex in src/ts/impls/mimex/mimex.c
TSSetUp_MPRK in src/ts/impls/multirate/mprk.c
TSSetUp_Pseudo in src/ts/impls/pseudo/posindep.c
TSSetUp_RosW in src/ts/impls/rosw/rosw.c
TSSetUp_BasicSymplectic in src/ts/impls/symplectic/basicsymplectic/basicsymplectic.c
---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/ts/interface/ts.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)