poisson.java

来自「Produce Java classes to calculate and di」· Java 代码 · 共 28 行

public class Poisson
{

	//-----------------FIELDS----------------
	private int a;
	private long x;
	private double poisson_X;

	//--------------CONSTRUCTORS--------------
	public Poisson(int newA, long newX)
	{
		a = newA;
		x = newX;
	}

	//----------------METHODS-----------------
	public void calcPoisson()
	{
		Factorial newFactorial;
		newFactorial = new Factorial(x);
		poisson_X = (Math.pow(a,x) * Math.pow(Math.E,(-a))) / newFactorial.getProduct();
	}

	public double getPoisson_X()
	{
		return (poisson_X);
	}
}