std::normal_distribution::normal_distribution

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explicit normal_distribution( RealType mean = 0.0, RealType stddev = 1.0 );
(1) (since C++11)
explicit normal_distribution( const param_type& params );
(2) (since C++11)

Constructs a new distribution object. The first version uses mean and stddev as the distribution parameters, the second version uses params as the distribution parameters.

Parameters

mean - the μ distribution parameter (mean)
stddev - the σ distribution parameter (standard deviation)
params - the distribution parameter set