# Normal
[Random Number Distributions]

Collaboration diagram for Normal:

## Classes

- class std::cauchy_distribution< _RealType >
    A cauchy_distribution random number distribution. More...
- class std::chi_squared_distribution< _RealType >
    A chi_squared_distribution random number distribution. More...
- class std::fisher_f_distribution< _RealType >
    A fisher_f_distribution random number distribution. More...
- class std::gamma_distribution< _RealType >
    A gamma continuous distribution for random numbers. More...
- class std::lognormal_distribution< _RealType >
    A lognormal_distribution random number distribution. More...
- class std::normal_distribution< _RealType >
    A normal continuous distribution for random numbers. More...
- class std::student_t_distribution< _RealType >
    A student_t_distribution random number distribution. More...

## Functions

- template<typename _RealType > bool std::operator!= (const std::normal_distribution< _RealType > &__d1, const std::normal_distribution< _RealType > &__d2)
- template<typename _RealType > bool std::operator!= (const std::lognormal_distribution< _RealType > &__d1, const std::lognormal_distribution< _RealType > &__d2)
- template<typename _RealType > bool std::operator!= (const std::chi_squared_distribution< _RealType > &__d1, const std::chi_squared_distribution< _RealType > &__d2)
- template<typename _RealType > bool std::operator!= (const std::fisher_f_distribution< _RealType > &__d1, const std::fisher_f_distribution< _RealType > &__d2)
- template<typename _RealType > bool std::operator!= (const std::student_t_distribution< _RealType > &__d1, const std::student_t_distribution< _RealType > &__d2)
- template<typename _RealType > bool std::operator!= (const std::cauchy_distribution< _RealType > &__d1, const std::cauchy_distribution< _RealType > &__d2)
- template<typename _RealType > bool std::operator!= (const std::gamma_distribution< _RealType > &__d1, const std::gamma_distribution< _RealType > &__d2)
- template<typename _RealType , typename _CharT , typename _Traits > std::basic_ostream< _CharT,
  _Traits > & std::operator<< (std::basic_ostream< _CharT, _Traits > &, const std::cauchy_distribution< _RealType > &)
- template<typename _RealType > bool std::operator== (const std::cauchy_distribution< _RealType > &__d1, const std::cauchy_distribution< _RealType > &__d2)
- template<typename _RealType , typename _CharT , typename _Traits > std::basic_istream< _CharT,
  _Traits > & std::operator>> (std::basic_istream< _CharT, _Traits > &, std::cauchy_distribution< _RealType > &)

## Function Documentation

template<typename _RealType >

bool std::operator!= | ( | const std::normal_distribution< _RealType > & | __d1,
|  | const std::normal_distribution< _RealType > & | __d2 |
| ) |  |  | `[inline]`

Return true if two normal distributions are different.

Definition at line 2159 of file random.h.

template<typename _RealType >

bool std::operator!= | ( | const std::lognormal_distribution< _RealType > & | __d1,
|  | const std::lognormal_distribution< _RealType > & | __d2 |
| ) |  |  | `[inline]`

Return true if two lognormal distributions are different.

Definition at line 2335 of file random.h.

template<typename _RealType >

bool std::operator!= | ( | const std::chi_squared_distribution< _RealType > & | __d1,
|  | const std::chi_squared_distribution< _RealType > & | __d2 |
| ) |  |  | `[inline]`

Return true if two Chi-squared distributions are different.

Definition at line 2692 of file random.h.

template<typename _RealType >

bool std::operator!= | ( | const std::fisher_f_distribution< _RealType > & | __d1,
|  | const std::fisher_f_distribution< _RealType > & | __d2 |
| ) |  |  | `[inline]`

Return true if two Fisher f distributions are diferent.

Definition at line 3047 of file random.h.

template<typename _RealType >

bool std::operator!= | ( | const std::student_t_distribution< _RealType > & | __d1,
|  | const std::student_t_distribution< _RealType > & | __d2 |
| ) |  |  | `[inline]`

Return true if two Student t distributions are different.

Definition at line 3221 of file random.h.

template<typename _RealType >

bool std::operator!= | ( | const std::cauchy_distribution< _RealType > & | __d1,
|  | const std::cauchy_distribution< _RealType > & | __d2 |
| ) |  |  | `[inline]`

Return true if two Cauchy distributions have different parameters.

Definition at line 2831 of file random.h.

template<typename _RealType >

bool std::operator!= | ( | const std::gamma_distribution< _RealType > & | __d1,
|  | const std::gamma_distribution< _RealType > & | __d2 |
| ) |  |  | `[inline]`

Return true if two gamma distributions are different.

Definition at line 2527 of file random.h.

template<typename _RealType , typename _CharT , typename _Traits >

std::basic_ostream< _CharT, _Traits > & std::operator<< | ( | std::basic_ostream< _CharT, _Traits > & | __os,
|  | const std::cauchy_distribution< _RealType > & | __x |
| ) |  |  |

Inserts a cauchy_distribution random number distribution `__x` into the output stream `__os`.

Parameters:

  | __os | An output stream.
  | __x | A cauchy_distribution random number distribution.

Returns:
  The output stream with the state of `__x` inserted or in an error state.

Definition at line 1822 of file random.tcc.

References std::left(), and std::scientific().

template<typename _RealType >

bool std::operator== | ( | const std::cauchy_distribution< _RealType > & | __d1,
|  | const std::cauchy_distribution< _RealType > & | __d2 |
| ) |  |  | `[inline]`

Return true if two Cauchy distributions have the same parameters.

Definition at line 2821 of file random.h.

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

template<typename _RealType , typename _CharT , typename _Traits >

std::basic_istream< _CharT, _Traits > & std::operator>> | ( | std::basic_istream< _CharT, _Traits > & | __is,
|  | std::cauchy_distribution< _RealType > & | __x |
| ) |  |  |

Extracts a cauchy_distribution random number distribution `__x` from the input stream `__is`.

Parameters:

  | __is | An input stream.
  | __x | A cauchy_distribution random number generator engine.

Returns:
  The input stream with `__x` extracted or in an error state.

Definition at line 1846 of file random.tcc.

References std::dec(), std::ios_base::flags(), std::cauchy_distribution< _RealType >::param(), and std::skipws().