Java Abs absDelta(double a, double b)

Description

abs Delta

License

Apache License

Return

|a-b|, or 0 if values are both NaN, both +Infinity or both -Infinity, or +Infinity if one value is NaN and the other not.

Declaration

public static double absDelta(double a, double b) 

Method Source Code

//package com.java2s;
/*//from   w  w w .ja  v a 2 s .c o  m
 * Copyright 2014 Jeff Hain
 *
 * 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 {
    /**
     * @return |a-b|, or 0 if values are both NaN,
     *         both +Infinity or both -Infinity,
     *         or +Infinity if one value is NaN
     *         and the other not.
     */
    public static double absDelta(double a, double b) {
        if (a == b) {
            return 0.0;
        }
        if (Double.isNaN(a)) {
            return Double.isNaN(b) ? 0.0 : Double.POSITIVE_INFINITY;
        } else if (Double.isNaN(b)) {
            return Double.POSITIVE_INFINITY;
        }
        return Math.abs(a - b);
    }
}

Related

1. absAngleDifference(double angle1Radians, double angle2Radians)
2. absApproximation(double x, double M)
3. absCap(double value, double bounds)
4. absClamp(double value, double bounds)
5. absDegrees(double degrees)
6. absDelta(float f1, float f2)
7. absDiff(long x, long y)
8. absHash(Object obj)
9. absNeg(final int a)