hypot2a.js (1054B)
1 /** 2 * @license Apache-2.0 3 * 4 * Copyright (c) 2018 The Stdlib Authors. 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 'use strict'; 20 21 /** 22 * Computes the hypotenuse using the alpha max plus beta min algorithm, where `alpha = 1` and `beta = 1/4`. 23 * 24 * @private 25 * @param {uinteger32} x - integer 26 * @param {uinteger32} y - integer 27 * @returns {number} hypotenuse 28 * 29 * @example 30 * var h = hypot( 5.0, 12.0 ); 31 * // returns <number> 32 */ 33 function hypot( x, y ) { 34 if ( x > y ) { 35 return x + (y>>>2); 36 } 37 return (x>>>2) + y; 38 } 39 40 41 // EXPORTS // 42 43 module.exports = hypot;