TDD 6

package Calculator;

public class Calculator {

     public double telOp(double x, double y) {
      return x + y;
     }

     public double trekAf(double x, double y) {
      return x - y;
     }

     public double vermenigvuldig(double x, double y) {
             return x * y;
     }

     public double deel(double x, double y) {
         if (y == 0) { throw new ArithmeticException(); }
         else { return x / y; }
     }

     public double kwadraat(double x) {
         return x * x;
     }

     public double wortel(double x) {
         return Math.sqrt(x);
     }

     public double modulus(double x, double y) {
         if (y == 0) { throw new ArithmeticException(); }
         else { return x % y; }
     }

     public double macht(double x, double y) {
         return Math.pow(x, y);
     }

    }