Here you can find the source of toRadians(double degrees)
public static double toRadians(double degrees)
//package com.java2s; /*//from w w w .ja v a 2 s . c om * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF 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 final double DEGREES_TO_RADIANS = Math.PI / 180; /** * Same as {@link Math#toRadians(double)} but 3x faster (multiply vs. divide). * See CompareRadiansSnippet.java in tests. */ public static double toRadians(double degrees) { return degrees * DEGREES_TO_RADIANS; } }