Secant

package secant;

public class Main
{
    public static double F(double x)
    {
        return ((x*x)-(4*x)-10);
    }
    public static void main(String[] args)
    {
        double x1=4,x2=2,x3=0,E=0.01;
        int iteration=1;
        do
        {
            x3 = x2-((F(x2)*(x2-x1))/(F(x2)-F(x1)));
            if(Math.abs(F(x3))<E)
            {
                break;
            }
            else
            {
                x1=x2;
                x2=x3;
                System.out.println("Iteration="+iteration+" x1="+x1+" x2="+x2+" x3="+x3+" F(x1)="+F(x1)+" F(x2)="+F(x2)+" F(x3)="+F(x3));
                iteration++;
            }
        }
        while(true);
        System.out.println("The root is : "+x3);
    }
}