evalpoly.js (2033B)
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 Lp = [ 36 6.666666666666735130e-01, // 0x3FE55555 0x55555593 37 3.999999999940941908e-01, // 0x3FD99999 0x9997FA04 38 2.857142874366239149e-01, // 0x3FD24924 0x94229359 39 2.222219843214978396e-01, // 0x3FCC71C5 0x1D8E78AF 40 1.818357216161805012e-01, // 0x3FC74664 0x96CB03DE 41 1.531383769920937332e-01, // 0x3FC39A09 0xD078C69F 42 1.479819860511658591e-01 // 0x3FC2F112 0xDF3E5244 43 ]; 44 45 // Header to add to output files: 46 var header = licenseHeader( 'Apache-2.0', 'js', { 47 'year': ( new Date() ).getFullYear(), 48 'copyright': 'The Stdlib Authors' 49 }); 50 header += '\n/* This is a generated file. Do not edit directly. */\n'; 51 52 53 // MAIN // 54 55 /** 56 * Main execution sequence. 57 * 58 * @private 59 */ 60 function main() { 61 var fpath; 62 var opts; 63 var str; 64 65 opts = { 66 'encoding': 'utf8' 67 }; 68 69 fpath = resolve( __dirname, '..', 'lib', 'polyval_lp.js' ); 70 str = header + compile( Lp ); 71 writeFileSync( fpath, str, opts ); 72 } 73 74 main();