Here you can find the source of atan2(Integer y, Integer x)
public static double atan2(Integer y, Integer x)
//package com.java2s; /*/* w w w . j av a2 s. c o m*/ * Licensed to Elasticsearch under one or more contributor * license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright * ownership. Elasticsearch licenses this file to you 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 { public static double atan2(Short y, Short x) { return Math.atan2(y.doubleValue(), x.doubleValue()); } public static double atan2(Integer y, Integer x) { return Math.atan2(y.doubleValue(), x.doubleValue()); } public static double atan2(Float y, Float x) { return Math.atan2(y.doubleValue(), x.doubleValue()); } public static double atan2(Long y, Long x) { return Math.atan2(y.doubleValue(), x.doubleValue()); } public static double atan2(Double y, Double x) { return Math.atan2(y, x); } }