One, function Generate Erlang distribution of random numbers.
The probability density function of the Erlang distribution is
\[ f( x)=\left\{\begin{matrix} \frac{\beta ^{-m}x^{m-1}}{(m-1)!}e
One, function Generate Erlang distribution of random numbers.
The probability density function of the Erlang distribution is
\[ f( x)=\left\{\begin{matrix} \frac{\beta ^{-m}x^{m-1}}{(m-1)!}e