:orphan:
# PetscPDFSampleGaussian2D
Sample uniformly from a Gaussian distribution in 2D 
## Synopsis
```
#include "petscdt.h" 
PetscErrorCode PetscPDFSampleGaussian2D(const PetscReal p[], const PetscReal dummy[], PetscReal x[])
```
Not Collective


## Input Parameters

- ***p -*** A uniform variable on [0, 1]^2
- ***dummy -*** ignored



## Output Parameter

- ***x -*** Coordinate in [-\infty, \infty]^2




Note: https://en.wikipedia.org/wiki/Box%E2%80%93Muller_transform


## See Also
 `PetscPDFGaussian2D()`, `PetscPDFMaxwellBoltzmann3D()`

## Level
beginner

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/dt/interface/dtprob.c.html#PetscPDFSampleGaussian2D">src/dm/dt/interface/dtprob.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/dt/interface/dtprob.c)


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