/**
* Generate a random value from a Normal (a.k.a. Gaussian) distribution with the given mean,
* <code>mu</code> and the given standard deviation, <code>sigma</code>.
*
* @param mu the mean of the distribution
* @param sigma the standard deviation of the distribution
* @return the random Normal value
*/
public double nextGaussian(double mu, double sigma) {
if (sigma <= 0) {
throw new IllegalArgumentException("Gaussian std dev must be > 0");
}
RandomGenerator rand = getRan();
return sigma * rand.nextGaussian() + mu;
}
/**
* Generate a random scalar with null mean and unit standard deviation.
*
* @return a random scalar with null mean and unit standard deviation
*/
public double nextNormalizedDouble() {
return generator.nextGaussian();
}
