index.js (1953B)
1 /** 2 * @license Apache-2.0 3 * 4 * Copyright (c) 2020 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 * Compute the sum of double-precision floating-point strided array elements, ignoring `NaN` values and using a second-order iterative Kahan–Babuška algorithm. 23 * 24 * @module @stdlib/blas/ext/base/dnannsumkbn2 25 * 26 * @example 27 * var Float64Array = require( '@stdlib/array/float64' ); 28 * var dnannsumkbn2 = require( '@stdlib/blas/ext/base/dnannsumkbn2' ); 29 * 30 * var x = new Float64Array( [ 1.0, -2.0, NaN, 2.0 ] ); 31 * var out = new Float64Array( 2 ); 32 * 33 * var v = dnannsumkbn2( x.length, x, 1, out, 1 ); 34 * // returns <Float64Array>[ 1.0, 3 ] 35 * 36 * @example 37 * var Float64Array = require( '@stdlib/array/float64' ); 38 * var floor = require( '@stdlib/math/base/special/floor' ); 39 * var dnannsumkbn2 = require( '@stdlib/blas/ext/base/dnannsumkbn2' ); 40 * 41 * var x = new Float64Array( [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0, NaN, NaN ] ); 42 * var out = new Float64Array( 2 ); 43 * 44 * var N = floor( x.length / 2 ); 45 * 46 * var v = dnannsumkbn2.ndarray( N, x, 2, 1, out, 1, 0 ); 47 * // returns <Float64Array>[ 5.0, 4 ] 48 */ 49 50 // MODULES // 51 52 var join = require( 'path' ).join; 53 var tryRequire = require( '@stdlib/utils/try-require' ); 54 var dnannsumkbn2 = require( './main.js' ); 55 56 57 // MAIN // 58 59 var tmp = tryRequire( join( __dirname, './native.js' ) ); 60 if ( !(tmp instanceof Error) ) { 61 dnannsumkbn2 = tmp; 62 } 63 64 65 // EXPORTS // 66 67 module.exports = dnannsumkbn2;