nextGaussian
Returns a normally distributed value with the given mean and standardDeviation.
The value is produced with the Box-Muller transform, so results follow a Gaussian distribution. A standardDeviation of 0.0 always yields mean.
Parameters
mean
the center of the distribution, 0.0 by default.
standardDeviation
the spread of the distribution, 1.0 by default, must be non-negative.
Throws
if standardDeviation is negative or NaN.