C#生成一个符合正态分布，高斯分布的随机数

//随机产生一个符合正态分布的数 u均数，d为方差

public static double Rand(double u, double d)

{

double u1, u2, z, x;

//Random ram = new Random();

if (d <= 0)

{

return u;

}

u1 = (new Random(GetRandomSeed())).NextDouble();

u2 = (new Random(GetRandomSeed())).NextDouble();

z = Math.Sqrt(-2 * Math.Log(u1)) * Math.Sin(2 * Math.PI * u2);

x = u + d * z;

return x;

}