std::negative_binomial_distribution::negative_binomial_distribution
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                    < cpp | numeric | random | negative binomial distribution
                    
                                                            
                    | explicit negative_binomial_distribution( IntType k = 1, double p = 0.5 ); | (1) | (since C++11) | 
| explicit negative_binomial_distribution( const param_type& params ); | (2) | (since C++11) | 
Constructs a new distribution object. The first version uses k and p as the distribution parameters, the second version uses params as the distribution parameters.
[edit] Parameters
| k | - | the k distribution parameter (number of trial failures) | 
| p | - | the p distribution parameter (probability of a trial generating true) | 
| params | - | the distribution parameter set | 
[edit] Notes
Requires that 0 < p ≤ 1 and 0 < k.
The default-constructed std::negative_binomial_distribution is equivalent to the default-constructed std::geometric_distribution.