NAME

       std::exponential_distribution< _RealType > -

SYNOPSIS

   Classes
       struct param_type

   Public Types
       typedef _RealType result_type

   Public Member Functions
       exponential_distribution (const result_type &__lambda=result_type(1))
       exponential_distribution (const param_type &__p)
       _RealType lambda () const
       result_type max () const
       result_type min () const
       template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator
           &__urng)
       template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator
           &__urng, const param_type &__p)
       param_type param () const
       void param (const param_type &__param)
       void reset ()

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 $p(x|bda) = bda e^{-bda x}$.

       Mean$ac{1}{bda}$ Median$ac{}}bda}$ Mode$zero$ Range$[0, infty]$ Standard Deviation$ac{1}{bda}$
       Distribution Statistics

       Definition at line 4145 of file random.h.

Member Typedef Documentation

   template<typename _RealType = double> typedef _RealType std::exponential_distribution< _RealType
       >::result_type
       The type of the range of the distribution.

       Definition at line 4148 of file random.h.

Constructor & Destructor Documentation

   template<typename _RealType = double> std::exponential_distribution< _RealType >::exponential_distribution
       (const result_type &__lambda = result_type(1)) [inline],  [explicit]
       Constructs an exponential distribution with inverse scale parameter $bda$.

       Definition at line 4183 of file random.h.

Member Function Documentation

   template<typename _RealType = double> _RealType std::exponential_distribution< _RealType >::lambda () const
       [inline]
       Returns the inverse scale parameter of the distribution.

       Definition at line 4204 of file random.h.

   template<typename _RealType = double> result_type std::exponential_distribution< _RealType >::max () const
       [inline]
       Returns the least upper bound value of the distribution.

       Definition at line 4233 of file random.h.

       References std::numeric_limits< _Tp >::max().

   template<typename _RealType = double> result_type std::exponential_distribution< _RealType >::min () const
       [inline]
       Returns the greatest lower bound value of the distribution.

       Definition at line 4226 of file random.h.

   template<typename _RealType = double> template<typename _UniformRandomNumberGenerator > result_type
       std::exponential_distribution< _RealType >::operator() (_UniformRandomNumberGenerator &__urng) [inline]
       Generating functions.

       Definition at line 4241 of file random.h.

       References std::exponential_distribution< _RealType >::param().

   template<typename _RealType = double> param_type std::exponential_distribution< _RealType >::param () const
       [inline]
       Returns the parameter set of the distribution.

       Definition at line 4211 of file random.h.

       Referenced by std::exponential_distribution< _RealType >::operator()(), std::operator==(), and
       std::operator>>().

   template<typename _RealType = double> void std::exponential_distribution< _RealType >::param (const
       param_type &__param) [inline]
       Sets the parameter set of the distribution.

       Parameters:
           __param The new parameter set of the distribution.

       Definition at line 4219 of file random.h.

   template<typename _RealType = double> void std::exponential_distribution< _RealType >::reset () [inline]
       Resets the distribution state. Has no effect on exponential distributions.

       Definition at line 4198 of file random.h.

Author

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libstdc++                                        Thu Mar 20 2014std::exponential_distribution< _RealType >(3cxx)