// 4. Exponential
public static double Exponential(double stream, double locate, double scale)
{
int istream = (int)stream;
double randValue = RandomGenerators.GetRandom(istream).NextDouble();
return(locate + (-scale * System.Math.Log(1 - randValue)));
}
// 23. Uniform
public static double Uniform(double stream, double min, double max)
{
int istream = (int)stream;
double randValue = RandomGenerators.GetRandom(istream).NextDouble();
return(randValue * (max - min) + min);
}
// 17. Normal
public static double Normal(double stream, double mean, double stdDev)
{
int istream = (int)stream;
Random rand = RandomGenerators.GetRandom(istream);
const int n = 1000;
double result = 0;
for (int i = 0; i < n; i++)
{
result += rand.NextDouble();
}
result = (result - (n / 2)) / System.Math.Sqrt(n / 12d);
result = result * stdDev + mean;
return(result);
}
