std::cauchy_distribution
Defined in header <random> | ||
|---|---|---|
template< class RealType = double > class cauchy_distribution; | (since C++11) |
Produces random numbers according to a Cauchy distribution (also called Lorentz distribution): f(x; a,b) =
⎛⎜
⎝bπ ⎡
⎢
⎣1 + ⎛
⎜
⎝
| x - a |
| b |
⎟
⎠2
⎤
⎥
⎦⎞
⎟
⎠-1
std::cauchy_distribution satisfies all requirements of RandomNumberDistribution.
Template parameters
| RealType | - | The result type generated by the generator. The effect is undefined if this is not one of float, double, or long double. |
Member types
| Member type | Definition |
|---|---|
result_type | RealType |
param_type | the type of the parameter set, see RandomNumberDistribution. |
Member functions
| constructs new distribution (public member function) |
|
| resets the internal state of the distribution (public member function) |
|
Generation |
|
| generates the next random number in the distribution (public member function) |
|
Characteristics |
|
| returns the distribution parameters (public member function) |
|
| gets or sets the distribution parameter object (public member function) |
|
| returns the minimum potentially generated value (public member function) |
|
| returns the maximum potentially generated value (public member function) |
|
Non-member functions
| compares two distribution objects (function) |
|
| performs stream input and output on pseudo-random number distribution (function template) |
Example
External links
Weisstein, Eric W. "Cauchy Distribution." From MathWorld--A Wolfram Web Resource. Cauchy Distribution. From Wikipedia.
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/numeric/random/cauchy_distribution