Seno

gistfile1.txt

import javax.swing.*;
import java.lang.*;
 
class seno{
  
  public static void main(String args[]){
    double x, soma=0,fat,xgraus;
    int n;
   
    x = Double.parseDouble(JOptionPane.showInputDialog("Insira o angulo (em graus)"));
    do{n = Integer.parseInt(JOptionPane.showInputDialog("Entre com o numero de termos"));
    }while(n<=0);
     
    xgraus = x;  
    x = rad(x); 
     
    for (int i =0; i<=n; i++)  
        soma += Math.pow(-1,i)*(Math.pow(x,2*i+1))/fatorial(2*i+1); 
     
     JOptionPane.showMessageDialog(null,"Seno de "+xgraus+" é, aproximadamente, " + soma);
  }
 
  
  public static int fatorial(int fatin) {//calcula fatorial
        int fatout = 1;
        for (int i = 1; i <= fatin; i++) {
            fatout *= i;
        }
        return fatout;
    }
 
   public static double rad(double graus) {//CONVERSOR!!
        double radout = (graus * 3.14)/180;
        return radout;
        }
   
}