Provided by: libstdc++-7-doc_7.5.0-6ubuntu2_all 

NAME
std::exponential_distribution< _RealType > - An exponential continuous distribution for random numbers.
SYNOPSIS
Classes
struct param_type
Public Types
typedef _RealType result_type
Public Member Functions
exponential_distribution (const param_type &__p)
exponential_distribution (const result_type &__lambda=result_type(1))
Constructs an exponential distribution with inverse scale parameter $bda$.
template<typename _ForwardIterator , typename _UniformRandomNumberGenerator > void __generate
(_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator &__urng)
template<typename _ForwardIterator , typename _UniformRandomNumberGenerator > void __generate
(_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator &__urng, const param_type
&__p)
template<typename _UniformRandomNumberGenerator > void __generate (result_type *__f, result_type *__t,
_UniformRandomNumberGenerator &__urng, const param_type &__p)
_RealType lambda () const
Returns the inverse scale parameter of the distribution.
result_type max () const
Returns the least upper bound value of the distribution.
result_type min () const
Returns the greatest lower bound value of the distribution.
template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator
&__urng)
Generating functions.
template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator
&__urng, const param_type &__p)
param_type param () const
Returns the parameter set of the distribution.
void param (const param_type &__param)
Sets the parameter set of the distribution.
void reset ()
Resets the distribution state.
Friends
bool operator== (const exponential_distribution &__d1, const exponential_distribution &__d2)
Return true if two exponential distributions have the same parameters.
Detailed Description
template<typename _RealType = double>
class std::exponential_distribution< _RealType >" An exponential continuous distribution for random
numbers.
The formula for the exponential probability density function is $p(x|bda) = bda e^{-bda x}$.
Distribution StatisticsMean$ac{1}{bda}$ Median$ac{}}bda}$ Mode$zero$ Range$[0, infty]$ Standard
Deviation$ac{1}{bda}$
Definition at line 4551 of file random.h.
Author
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libstdc++ Thu Mar 26 2020std::exponential_distribution< _RealType >(3cxx)