RandomLib::MPFRNormalR Class Reference

The normal distribution for MPFR (ratio method). More...

#include <RandomLib/MPFRNormalR.hpp>

Public Member Functions
	MPFRNormalR ()
	~MPFRNormalR ()
int	operator() (mpfr_t val, gmp_randstate_t r, mpfr_rnd_t round) const

Detailed Description

The normal distribution for MPFR (ratio method).

This class is DEPRECATED. It is included for illustrative purposes only. The MPFRNormal class provides a much more efficient method for sampling from the normal distribution.

This is an adaption of NormalDistribution to MPFR. The changes are

• Use MPFR's random number generator
• Use sufficient precision internally to ensure that a correctly rounded result is returned.

This class uses a mutable private object. So a single MPFRNormalR object cannot safely be used by multiple threads. In a multi-processing environment, each thread should use a thread-specific MPFRNormalR object.

Definition at line 43 of file MPFRNormalR.hpp.

Constructor & Destructor Documentation

RandomLib::MPFRNormalR::MPFRNormalR ( )

inline

Initialize the MPFRNormalR object.

Definition at line 55 of file MPFRNormalR.hpp.

RandomLib::MPFRNormalR::~MPFRNormalR ( )

inline

Destroy the MPFRNormalR object.

Definition at line 70 of file MPFRNormalR.hpp.

Member Function Documentation

int RandomLib::MPFRNormalR::operator() ( mpfr_t  val, gmp_randstate_t  r, mpfr_rnd_t  round  ) const

inline

Sample from the normal distribution with mean 0 and variance 1.

Parameters

[out]	val	the sample from the normal distribution
[in,out]	r	a GMP random generator.
[in]	round	the rounding direction.

Returns

the MPFR ternary result (±1 if val is larger/smaller than the exact sample).

Definition at line 91 of file MPFRNormalR.hpp.

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The documentation for this class was generated from the following file:

• MPFRNormalR.hpp