# TSRollBack
Rolls back one time step 
## Synopsis
```
#include "petscts.h"  
PetscErrorCode TSRollBack(TS ts)
```
Collective


## Input Parameter

- ***ts -*** the `TS` context obtained from `TSCreate()`





## See Also
 [](chapter_ts), `TS`, `TSCreate()`, `TSSetUp()`, `TSDestroy()`, `TSSolve()`, `TSSetPreStep()`, `TSSetPreStage()`, `TSInterpolate()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/interface/ts.c.html#TSRollBack">src/ts/interface/ts.c</A>

## Implementations

<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/arkimex/arkimex.c.html#TSRollBack_ARKIMEX">TSRollBack_ARKIMEX in src/ts/impls/arkimex/arkimex.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/bdf/bdf.c.html#TSRollBack_BDF">TSRollBack_BDF in src/ts/impls/bdf/bdf.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/explicit/rk/rk.c.html#TSRollBack_RK">TSRollBack_RK in src/ts/impls/explicit/rk/rk.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/implicit/alpha/alpha1.c.html#TSRollBack_Alpha">TSRollBack_Alpha in src/ts/impls/implicit/alpha/alpha1.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/implicit/alpha/alpha2.c.html#TSRollBack_Alpha">TSRollBack_Alpha in src/ts/impls/implicit/alpha/alpha2.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/implicit/irk/irk.c.html#TSRollBack_IRK">TSRollBack_IRK in src/ts/impls/implicit/irk/irk.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/implicit/theta/theta.c.html#TSRollBack_Theta">TSRollBack_Theta in src/ts/impls/implicit/theta/theta.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/rosw/rosw.c.html#TSRollBack_RosW">TSRollBack_RosW in src/ts/impls/rosw/rosw.c</A><BR>


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[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](/docs/manualpages/index.md)  
[Index of all manual pages](/docs/manualpages/singleindex.md)  
