MIT-Curricular/OOP/Java/Lab/Week3/SqInvAndSinCalc.java

import java.util.Scanner;
public class SqInvAndSinCalc {
    public static void main(String args[]){
        Scanner sc = new Scanner(System.in);
        double sum=0, sinx=0;

        System.out.println("Enter the number of terms you want to check (for both Sine and Sum):");
        int terms = sc.nextInt();

        for(int i=1; i<=terms ; i++){
            sum += Math.pow(i,-i);
        }

        System.out.println("Enter the input in degrees for the Sine function:");
        double y = sc.nextDouble();

        double x = y * (3.1415926 / 180.0);
        sinx = x;
        int n = 1;

        for (int i = 1; i <= terms; i++) {
            double term = Math.pow(-1, n) * Math.pow(x, 2 * n + 1) / factorial(2 * n + 1);
            sinx += term;
            n++;
        }

        System.out.println("The value of Sin(" + x + ") is: " + sinx);

        System.out.println("The sum is " + sum);
    }

    public static double factorial(int n) {
        double result = 1;
        for (int i = 2; i <= n; i++) {
            result *= i;
        }
        return result;
    }
}