celeritas::InverseSquareDistribution< RealType > Class Template Reference

Sample \( 1/x^2 \) over a given domain. More...

#include <InverseSquareDistribution.hh>

Public Types
Type aliases
using	real_type = RealType
using	result_type = real_type

Public Member Functions
CELER_FUNCTION	InverseSquareDistribution (real_type a, real_type b)
	Construct on the interval [a, b). More...
template<class Generator >
CELER_FUNCTION result_type	operator() (Generator &rng) const
template<class Generator >
CELER_FUNCTION auto	operator() (Generator &rng) const -> result_type
	Sample a random number according to the distribution.

Detailed Description

template<class RealType = ::celeritas::real_type>
class celeritas::InverseSquareDistribution< RealType >

Sample \( 1/x^2 \) over a given domain.

This distribution is defined on a positive range \( [a, b) \) and has the normalized PDF:

\[ f(x; a, b) = \frac{a b}{x^2 (b - a)} \quad \mathrm{for} \ a \le x < b \]

which integrated into a CDF and inverted gives a sample:

\[ x = \frac{a b}{a + \xi (b - a)} \]

Constructor & Destructor Documentation

InverseSquareDistribution()

template<class RealType >

CELER_FUNCTION celeritas::InverseSquareDistribution< RealType >::InverseSquareDistribution ( real_type  a, real_type  b  )

inline

Construct on the interval [a, b).

As with UniformRealDistribution, it is allowable for the two bounds to be out of order.

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

• InverseSquareDistribution.hh