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|
package integration;
import java.util.Scanner;
public class montecarlo {
public static double f(double x)
{
return Math.cos(x);
}
public static double montecarlo (double a , double b , long interations)
{
if (a>b)
{
return montecarlo(b,a,interations);
}
double sum = 0 , x=0;
for (long i=1;i<=interations;i++)
{
x = Math.random();
sum = sum + f(a +((b-a)*x));
}
sum = ((b-a)/interations)*sum;
return sum;
}
public static void main (String[] args)
{
Scanner clavier = new Scanner(System.in);
double b1,b2,fonction;
System.out.print("les Bornes:");
b1 = clavier.nextDouble();
b2 = clavier.nextDouble();
System.out.print("resultat est : "+montecarlo(b1,b2,100000));
}
} |
