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A Java mapping for the OGC Geography Markup Language (GML)

There is a newer version: 1.1.2

/*
 * gml-objects - A Java mapping for the OGC Geography Markup Language (GML)
 * https://github.com/xmlobjects/gml-objects
 *
 * Copyright 2019-2024 Claus Nagel 
 *
 * 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.
 */

package org.xmlobjects.gml.util.jama;

public class Maths {

    /**
     * sqrt(a^2 + b^2) without under/overflow.
     *
     * @param a first parameter
     * @param b second parameter
     * @return double
     **/

    public static double hypot(double a, double b) {
        double r;
        if (Math.abs(a) > Math.abs(b)) {
            r = b / a;
            r = Math.abs(a) * Math.sqrt(1 + r * r);
        } else if (b != 0) {
            r = a / b;
            r = Math.abs(b) * Math.sqrt(1 + r * r);
        } else {
            r = 0.0;
        }
        return r;
    }
}