index.js (1451B)
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 * Calculate a continued fraction approximation. 23 * 24 * @module @stdlib/math/base/tools/continued-fraction 25 * 26 * @example 27 * var continuedFraction = require( '@stdlib/math/base/tools/continued-fraction' ); 28 * 29 * // Continued fraction for (e-1)^(-1): 30 * var gen = generator() 31 * var out = continuedFraction( gen ); 32 * // returns ~0.582 33 * 34 * function generator() { 35 * var i = 0; 36 * return function() { 37 * i++; 38 * return [ i, i ]; 39 * }; 40 * } 41 */ 42 43 // MODULES // 44 45 var hasGeneratorSupport = require( '@stdlib/assert/has-generator-support' ); 46 var generator = require( './generators.js' ); 47 var basic = require( './basic.js' ); 48 49 50 // MAIN // 51 52 var continuedFraction; 53 if ( hasGeneratorSupport() ) { 54 continuedFraction = generator; 55 } else { 56 continuedFraction = basic; 57 } 58 59 60 // EXPORTS // 61 62 module.exports = continuedFraction;