# QuantLib_CLGaussianRng man page

CLGaussianRng< RNG > — Gaussian random number generator.

## Synopsis

`#include <ql/math/randomnumbers/centrallimitgaussianrng.hpp>`

### Public Types

typedef **Sample**< **Real** > **sample_type**

typedef RNG **urng_type**

### Public Member Functions

**CLGaussianRng** (const RNG &uniformGenerator)**sample_type next** () const

returns a sample from a Gaussian distribution

## Detailed Description

### template<class RNG>

class QuantLib::CLGaussianRng< RNG >" Gaussian random number generator.

It uses the well-known fact that the sum of 12 uniform deviate in (-.5,.5) is approximately a Gaussian deviate with average 0 and standard deviation 1. The uniform deviate is supplied by RNG.

Class RNG must implement the following interface:

RNG::sample_type RNG::next() const;

## Author

Generated automatically by Doxygen for QuantLib from the source code.

## Referenced By

CLGaussianRng(3) is an alias of QuantLib_CLGaussianRng(3).

Fri Feb 10 2017 Version 1.9.1 QuantLib