Java tutorial
//package com.java2s; /* ** 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 { static final double APPROX_EQUALS_PRECISION = 1.0e-9; /** Rounding errors might make equal floating point numbers seem to differ. */ public static boolean approxEquals(double a, double b) { return (Math.abs(a - b) < APPROX_EQUALS_PRECISION); } public static boolean approxEquals(double a, double b, double precision) { return (Math.abs(a - b) < precision); } }