| 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 | |
| operator()
| 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.
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