# PetscRandomSetType
Builds a context for generating a particular type of random numbers. 
## Synopsis
```
#include "petscsys.h" 
PetscErrorCode PetscRandomSetType(PetscRandom rnd, PetscRandomType type)
```
Collective


## Input Parameters

- ***rnd   -*** The random number generator context
- ***type -*** The name of the random type



## Options Database Key

- ***-random_type <type> -*** Sets the random type; use -help for a list
of available types



## Note
See "petsc/include/petscsys.h" for available random types (for instance, `PETSCRAND48`, `PETSCRAND`).




## See Also
 `PetscRandom`, `PetscRandomGetType()`, `PetscRandomCreate()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/sys/classes/random/interface/randreg.c.html#PetscRandomSetType">src/sys/classes/random/interface/randreg.c</A>


---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/sys/classes/random/interface/randreg.c)


[Index of all Sys routines](index.md)  
[Table of Contents for all manual pages](/docs/manualpages/index.md)  
[Index of all manual pages](/docs/manualpages/singleindex.md)  
