package org.apidesign.sidemeanings.math;

 /** 

  */

 // BEGIN: design.sidemeanings.arith.factorial

 public final class Factorial extends Arithmetica {

     public int factorial(int n) {

         return sumRange(1, n);

     }

     @Override

     protected int overridableSumTwo(int one, int second) {

         return one * second;

     }

     @Override

     protected int overridableSumAll(int... numbers) {

         return defaultSumAll(numbers);

     }

     @Override

     protected int overridableSumRange(int from, int to) {

         return defaultSumRange(from, to);

     }

 }

 // END: design.sidemeanings.arith.factorial