Here you can find the source of factorial(double n)

Parameter | Description |
---|---|

n | the number to getFromOrigin the factorial for |

public static double factorial(double n)

//package com.java2s; /*//from w ww .jav a 2s.c o m * * * Copyright 2015 Skymind,Inc. * * * * Licensed under the Apache License, Version 2.0 (the "License"); * * you may not use this file except in compliance with the License. * * You may obtain a copy of the License at * * * * http://www.apache.org/licenses/LICENSE-2.0 * * * * Unless required by applicable law or agreed to in writing, software * * distributed under the License is distributed on an "AS IS" BASIS, * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * * See the License for the specific language governing permissions and * * limitations under the License. * */ public class Main { /** * This will return the factorial of the given number n. * @param n the number to getFromOrigin the factorial for * @return the factorial for this number */ public static double factorial(double n) { if (n == 1 || n == 0) return 1; for (double i = n; i > 0; i--, n *= (i > 0 ? i : 1)) { } return n; } }