ndarray.js (1837B)
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 // MODULES // 22 23 var dmap = require( '@stdlib/strided/base/dmap' ).ndarray; 24 var inv = require( './../../../../base/special/inv' ); 25 26 27 // MAIN // 28 29 /** 30 * Computes the multiplicative inverse for each element in a double-precision floating-point strided array `x` and assigns the results to elements in a double-precision floating-point strided array `y`. 31 * 32 * @param {NonNegativeInteger} N - number of indexed elements 33 * @param {Float64Array} x - input array 34 * @param {integer} strideX - `x` stride length 35 * @param {NonNegativeInteger} offsetX - starting `x` index 36 * @param {Float64Array} y - destination array 37 * @param {integer} strideY - `y` stride length 38 * @param {NonNegativeInteger} offsetY - starting `y` index 39 * @returns {Float64Array} `y` 40 * 41 * @example 42 * var Float64Array = require( '@stdlib/array/float64' ); 43 * 44 * var x = new Float64Array( [ -20.0, -1.0, 2.0, 4.0, 10.0 ] ); 45 * var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] ); 46 * 47 * dinv( x.length, x, 1, 0, y, 1, 0 ); 48 * // y => <Float64Array>[ -0.05, -1.0, 0.5, 0.25, 0.1 ] 49 */ 50 function dinv( N, x, strideX, offsetX, y, strideY, offsetY ) { 51 return dmap( N, x, strideX, offsetX, y, strideY, offsetY, inv ); 52 } 53 54 55 // EXPORTS // 56 57 module.exports = dinv;