# TSARKIMEXSetFullyImplicit
Solve both parts of the equation implicitly, including the part that is normally solved explicitly 
## Synopsis
```
#include "petscts.h"   
PetscErrorCode TSARKIMEXSetFullyImplicit(TS ts, PetscBool flg)
```
Logically collective


## Input Parameters

- ***ts -*** timestepping context
- ***flg -*** `PETSC_TRUE` for fully implicit





## See Also
 [](chapter_ts), `TSARKIMEX`, `TSARKIMEXGetType()`, `TSARKIMEXGetFullyImplicit()`

## Level
intermediate

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

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/tutorials/ex36A.c.html">src/ts/tutorials/ex36A.c.html</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/tutorials/ex36SE.c.html">src/ts/tutorials/ex36SE.c.html</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/tutorials/extchem.c.html">src/ts/tutorials/extchem.c.html</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/tutorials/extchemfield.c.html">src/ts/tutorials/extchemfield.c.html</A><BR>

## Implementations

<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/arkimex/arkimex.c.html#TSARKIMEXSetFullyImplicit_ARKIMEX">TSARKIMEXSetFullyImplicit_ARKIMEX in src/ts/impls/arkimex/arkimex.c</A><BR>


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