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# TSARKIMEX4
Fourth order ARK IMEX scheme with L-stable implicit part. This method has one explicit stage and four implicit stages.


## Options Database Key

- ***-ts_arkimex_type 4 -*** set arkimex type to4





## References

- **** -*** Kennedy and Carpenter 2003.



## See Also
 [](ch_ts), `TSARKIMEX`, `TSARKIMEXType`, `TSARKIMEXSetType()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/impls/arkimex/arkimex.c.html#TSARKIMEX4">src/ts/impls/arkimex/arkimex.c</A>

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/tutorials/extchem.c.html">src/ts/tutorials/extchem.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/tutorials/extchemfield.c.html">src/ts/tutorials/extchemfield.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](/manualpages/index.md)  
[Index of all manual pages](/manualpages/singleindex.md)