std::exponential_distribution(3)

NAME

std::exponential_distribution

template<typename _RealType = double> class std::exponential_distribution<: _RealType >
An exponential continuous distribution for random numbers.; The formula for the exponential probability mass function is $ p(x) =
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 2088 of file tr1_impl/random.
Public Types: typedef _RealType input_type
typedef _RealType result_type
Public Member Functions: exponential_distribution (const result_type &__lambda=result_type(1)) _RealType lambda () const
template<class _UniformRandomNumberGenerator> result_type operator()
(_UniformRandomNumberGenerator &__urng); void reset ()
Friends: template<typename _RealType1, typename _CharT, typename _Traits>
std::basic_ostream< _CharT, _Traits > & operator<< (std::basic_ostream< _CharT, _Traits > &__os, const exponential_distribution< _RealType1 > &__x); template<typename _CharT, typename _Traits> std::basic_istream< _CharT,
_Traits > & operator>> (std::basic_istream< _CharT, _Traits > &__is, exponential_distribution &__x)

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 2101 of file tr1_impl/random.

template<typename _RealType = double> _RealType: std::exponential_distribution< _RealType >::lambda () const [inline] Gets the inverse scale parameter of the distribution.; Definition at line 2111 of file tr1_impl/random.
template<typename _RealType = double> void std::exponential_distribution<: _RealType >::reset () [inline] Resets the distribution.; Has no effect on exponential distributions.; Definition at line 2120 of file tr1_impl/random.

template<typename _RealType = double> template<typename _RealType1,: typename _CharT, typename _Traits> std::basic_ostream<_CharT, _Traits>& operator<< (std::basic_ostream< _CharT, _Traits > & __os, const exponential_distribution< _RealType1 > & __x) [friend] Inserts a exponential_distribution random number distribution __x into the output stream __os.; Parameters:
__os An output stream.
__x A exponential_distribution random number distribution.; Returns:
The output stream with the state of __x inserted or in an error
state.
template<typename _RealType = double> template<typename _CharT, typename: _Traits> std::basic_istream<_CharT, _Traits>& operator>> (std::basic_istream< _CharT, _Traits > & __is, exponential_distribution< _RealType > & __x) [friend] Extracts a exponential_distribution random number distribution __x from the input stream __is.; Parameters:
__is An input stream.
__x A exponential_distribution random number generator engine.; Returns:
The input stream with __x extracted or in an error state.; Definition at line 2154 of file tr1_impl/random.

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