francoisvieta.java

来自「Produce a Java program to calculate the 」· Java 代码 · 共 27 行

class FrancoisVieta extends Estimation
{
	//----------------FIELDS-------------
	private double pi;

	//--------------CONSTRUCTOR-------------
	public FrancoisVieta(int newTermNo)
	{
		super(newTermNo);
	}

	//-----------------METHOD----------------
	
	public double calc_pi()
	{
		double tempValue = 1.0;
		double dividend = 0.0;

		for (int i = 1; i <= termNo; i++)
		{
			dividend=Math.sqrt(2.0+dividend);
			tempValue=0.5*tempValue*dividend;
		}
		pi=2/tempValue;
		return(pi);
	}
}