time-to-botec

Benchmark sampling in different programming languages
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evalrational.js (3722B)

      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 
     36 // S(x) for small x:
     37 var PS = [
     38 	3.18016297876567817986E11,
     39 	-4.42979518059697779103E10,
     40 	2.54890880573376359104E9,
     41 	-6.29741486205862506537E7,
     42 	7.08840045257738576863E5,
     43 	-2.99181919401019853726E3,
     44 	0.0
     45 ];
     46 
     47 var QS = [
     48 	6.07366389490084639049E11,
     49 	2.24411795645340920940E10,
     50 	4.19320245898111231129E8,
     51 	5.17343888770096400730E6,
     52 	4.55847810806532581675E4,
     53 	2.81376268889994315696E2,
     54 	1.00000000000000000000E0
     55 ];
     56 
     57 // Auxiliary function f(x):
     58 var PF = [
     59 	3.76329711269987889006E-20,
     60 	1.34283276233062758925E-16,
     61 	1.72010743268161828879E-13,
     62 	1.02304514164907233465E-10,
     63 	3.05568983790257605827E-8,
     64 	4.63613749287867322088E-6,
     65 	3.45017939782574027900E-4,
     66 	1.15220955073585758835E-2,
     67 	1.43407919780758885261E-1,
     68 	4.21543555043677546506E-1,
     69 	0.0
     70 ];
     71 
     72 var QF = [
     73 	1.25443237090011264384E-20,
     74 	4.52001434074129701496E-17,
     75 	5.88754533621578410010E-14,
     76 	3.60140029589371370404E-11,
     77 	1.12699224763999035261E-8,
     78 	1.84627567348930545870E-6,
     79 	1.55934409164153020873E-4,
     80 	6.44051526508858611005E-3,
     81 	1.16888925859191382142E-1,
     82 	7.51586398353378947175E-1,
     83 	1.00000000000000000000E0
     84 ];
     85 
     86 // Auxiliary function g(x):
     87 var PG = [
     88 	1.86958710162783235106E-22,
     89 	8.36354435630677421531E-19,
     90 	1.37555460633261799868E-15,
     91 	1.08268041139020870318E-12,
     92 	4.45344415861750144738E-10,
     93 	9.82852443688422223854E-8,
     94 	1.15138826111884280931E-5,
     95 	6.84079380915393090172E-4,
     96 	1.87648584092575249293E-2,
     97 	1.97102833525523411709E-1,
     98 	5.04442073643383265887E-1,
     99 	0.0
    100 ];
    101 
    102 var QG = [
    103 	1.86958710162783236342E-22,
    104 	8.39158816283118707363E-19,
    105 	1.38796531259578871258E-15,
    106 	1.10273215066240270757E-12,
    107 	4.60680728146520428211E-10,
    108 	1.04314589657571990585E-7,
    109 	1.27545075667729118702E-5,
    110 	8.14679107184306179049E-4,
    111 	2.53603741420338795122E-2,
    112 	3.37748989120019970451E-1,
    113 	1.47495759925128324529E0,
    114 	1.00000000000000000000E0
    115 ];
    116 
    117 // Header to add to output files:
    118 var header = licenseHeader( 'Apache-2.0', 'js', {
    119 	'year': ( new Date() ).getFullYear(),
    120 	'copyright': 'The Stdlib Authors'
    121 });
    122 header += '\n/* This is a generated file. Do not edit directly. */\n';
    123 
    124 
    125 // MAIN //
    126 
    127 /**
    128 * Main execution sequence.
    129 *
    130 * @private
    131 */
    132 function main() {
    133 	var fpath;
    134 	var opts;
    135 	var str;
    136 
    137 	opts = {
    138 		'encoding': 'utf8'
    139 	};
    140 
    141 	fpath = resolve( __dirname, '..', 'lib', 'rational_psqs.js' );
    142 	str = header + compile( PS, QS );
    143 	writeFileSync( fpath, str, opts );
    144 
    145 	fpath = resolve( __dirname, '..', 'lib', 'rational_pfqf.js' );
    146 	str = header + compile( PF, QF );
    147 	writeFileSync( fpath, str, opts );
    148 
    149 	fpath = resolve( __dirname, '..', 'lib', 'rational_pgqg.js' );
    150 	str = header + compile( PG, QG );
    151 	writeFileSync( fpath, str, opts );
    152 }
    153 
    154 main();