import java.util.*;
/**
 * Write a description of class Calculator here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class MathMethods

{

    public static Double add(double n1, double n2){
        return (n1 + n2);
    }

    public static Double subtract(double n1, double n2){
        return (n1 - n2);
    }

    public static Double multiply(double n1, double n2){
        return (n1 * n2);
    }

    public static Double divide(double n1, double n2){
        return (n1 / n2);
    }

    public static Double exponent(double n1, double n2){
        return (Math.pow(n1, n2));
    }

    public static Double cosine(double n1){
        return (Math.cos(n1));
    }

    public static Double invCosine(double n1){
        return (Math.acos(n1));
    }

    public static double squareRoot(double n1) {
        return (Math.sqrt(n1));

    }

    public static double invert(double n1) {
        return (n1*-1);

    }

    public static double sin(double n1){
        return (Math.sin(n1));

    }

    public static double iSin(double n1){
        return (Math.asin(n1));

    }

    public static double degToRad(double n1) {
        return (Math.toRadians(n1));

    }

    public static double radToDeg(double n1) {
        return (Math.toDegrees(n1));

    }

    public static double square(double n1) {
        return Math.pow(n1, 2);

    }

    public static double inverse(double n1) {
        return n1;
    }

    public static double tangent(double n1) {
        return Math.tan(n1);
    }

    public static double itan(double n1) {
        return Math.atan(n1);
    }

    public static void printAns(String printAnswer){
        System.out.println("ANSWER: " + printAnswer);
    }

}

    
    
// public static double squareRoot(double n1) {
// double result = Math.sqrt(x);
// return result;
// }

// public static double invert(double n1) {
// double result = x*-1;
// return result;
// }

// public static double sin(double n1){
// double result = Math.sin(x);
// return result;
// }

// public static double iSin(double n1){
// double result = Math.asin(x);
// return result;
// }

// public static double degToRad(double n1) {
// double result = Math.toRadians(x);
// return result;
// }

// public static double radToDeg(double n1) {
// double result = Math.toDegrees(x);
// return result;
// }

// public static Double exponent(double n1, double n2){
// return (Math.pow(n1, n2));
// }

// public static Double cosine(double n1){
// return (Math.cos(n1));
// }

// public static Double invCosine(double n1){
// return (Math.acos(n1));
// }