evalpoly.js (1946B)
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/evalpoly-compile' ); 30 31 32 // VARIABLES // 33 34 // Polynomial coefficients ordered in ascending degree... 35 var P = [ 36 1.51390680115615096133e3, 37 2.02020656693165307700e1, 38 2.30933477057345225087e-2 39 ]; 40 var Q = [ 41 4.36821166879210612817e3, 42 2.33184211722314911771e2, 43 1.0 44 ]; 45 46 // Header to add to output files: 47 var header = licenseHeader( 'Apache-2.0', 'js', { 48 'year': ( new Date() ).getFullYear(), 49 'copyright': 'The Stdlib Authors' 50 }); 51 header += '\n/* This is a generated file. Do not edit directly. */\n'; 52 53 54 // MAIN // 55 56 /** 57 * Main execution sequence. 58 * 59 * @private 60 */ 61 function main() { 62 var fpath; 63 var opts; 64 var str; 65 66 opts = { 67 'encoding': 'utf8' 68 }; 69 70 fpath = resolve( __dirname, '..', 'lib', 'polyval_p.js' ); 71 str = header + compile( P ); 72 writeFileSync( fpath, str, opts ); 73 74 fpath = resolve( __dirname, '..', 'lib', 'polyval_q.js' ); 75 str = header + compile( Q ); 76 writeFileSync( fpath, str, opts ); 77 } 78 79 main();