evalrational.js (3185B)
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 /* 20 * This script compiles modules for evaluating polynomial functions. If any polynomial coefficients change, this script should be rerun to update the compiled files. 21 */ 22 'use strict'; 23 24 // MODULES // 25 26 var resolve = require( 'path' ).resolve; 27 var writeFileSync = require( '@stdlib/fs/write-file' ).sync; 28 var licenseHeader = require( '@stdlib/_tools/licenses/header' ); 29 var compile = require( './../../../../base/tools/evalrational-compile' ); 30 31 32 // VARIABLES // 33 34 // Polynomial coefficients ordered in ascending degree... 35 var P1 = [ 36 -0.180355685678449379109e-1, 37 0.25126649619989678683e-1, 38 0.494103151567532234274e-1, 39 0.172491608709613993966e-1, 40 -0.259453563205438108893e-3, 41 -0.541009869215204396339e-3, 42 -0.324588649825948492091e-4, 43 0.0 44 ]; 45 var Q1 = [ 46 0.1e1, 47 0.196202987197795200688e1, 48 0.148019669424231326694e1, 49 0.541391432071720958364e0, 50 0.988504251128010129477e-1, 51 0.82130967464889339326e-2, 52 0.224936291922115757597e-3, 53 -0.223352763208617092964e-6 54 ]; 55 56 var P2 = [ 57 0.490622454069039543534e-1, 58 -0.969117530159521214579e-1, 59 -0.414983358359495381969e0, 60 -0.406567124211938417342e0, 61 -0.158413586390692192217e0, 62 -0.240149820648571559892e-1, 63 -0.100346687696279557415e-2 64 ]; 65 var Q2 = [ 66 0.1e1, 67 0.302349829846463038743e1, 68 0.348739585360723852576e1, 69 0.191415588274426679201e1, 70 0.507137738614363510846e0, 71 0.577039722690451849648e-1, 72 0.195768102601107189171e-2 73 ]; 74 75 var P3 = [ 76 -0.292329721830270012337e-1, 77 0.144216267757192309184e0, 78 -0.142440390738631274135e0, 79 0.542809694055053558157e-1, 80 -0.850535976868336437746e-2, 81 0.431171342679297331241e-3, 82 0.0 83 ]; 84 var Q3 = [ 85 0.1e1, 86 -0.150169356054485044494e1, 87 0.846973248876495016101e0, 88 -0.220095151814995745555e0, 89 0.25582797155975869989e-1, 90 -0.100666795539143372762e-2, 91 -0.827193521891290553639e-6 92 ]; 93 94 // Header to add to output files: 95 var header = licenseHeader( 'Apache-2.0', 'js', { 96 'year': ( new Date() ).getFullYear(), 97 'copyright': 'The Stdlib Authors' 98 }); 99 header += '\n/* This is a generated file. Do not edit directly. */\n'; 100 101 102 // MAIN // 103 104 /** 105 * Main execution sequence. 106 * 107 * @private 108 */ 109 function main() { 110 var fpath; 111 var opts; 112 var str; 113 114 opts = { 115 'encoding': 'utf8' 116 }; 117 118 fpath = resolve( __dirname, '..', 'lib', 'rational_p1q1.js' ); 119 str = header + compile( P1, Q1 ); 120 writeFileSync( fpath, str, opts ); 121 122 fpath = resolve( __dirname, '..', 'lib', 'rational_p2q2.js' ); 123 str = header + compile( P2, Q2 ); 124 writeFileSync( fpath, str, opts ); 125 126 fpath = resolve( __dirname, '..', 'lib', 'rational_p3q3.js' ); 127 str = header + compile( P3, Q3 ); 128 writeFileSync( fpath, str, opts ); 129 } 130 131 main();