edu.uci.jforestsx.util.FloatingPointUtil Maven / Gradle / Ivy
/**
* 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.
*/
package edu.uci.jforestsx.util;
/**
* @author Yasser Ganjisaffar
*/
public class FloatingPointUtil {
// The small deviation allowed in double comparisons
public static double SMALL = 1e-6;
public static boolean lessThanOrEqual(double a, double b) {
return (a - b < SMALL);
}
public static boolean greaterThanOrEqual(double a, double b) {
return (b - a < SMALL);
}
public static boolean lessThan(double a, double b) {
return (b - a > SMALL);
}
public static boolean greaterThan(double a, double b) {
return (a - b > SMALL);
}
public static boolean equal(double a, double b) {
return (a - b < SMALL) && (b - a < SMALL);
}
public static boolean equal(double a, double b, double epsilon) {
return (a - b < epsilon) && (b - a < epsilon);
}
}