/** * @license Apache-2.0 * * Copyright (c) 2020 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ 'use strict'; /** * BLAS level 1 routine to multiply a double-precision floating-point vector by a constant. * * @module @stdlib/blas/base/dscal * * @example * var Float64Array = require( '@stdlib/array/float64' ); * var dscal = require( '@stdlib/blas/base/dscal' ); * * var x = new Float64Array( [ -2.0, 1.0, 3.0, -5.0, 4.0, 0.0, -1.0, -3.0 ] ); * * dscal( x.length, 5.0, x, 1 ); * // x => [ -10.0, 5.0, 15.0, -25.0, 20.0, 0.0, -5.0, -15.0 ] * * @example * var Float64Array = require( '@stdlib/array/float64' ); * var dscal = require( '@stdlib/blas/base/dscal' ); * * var x = new Float64Array( [ -2.0, 1.0, 3.0, -5.0, 4.0, 0.0, -1.0, -3.0 ] ); * * dscal.ndarray( x.length, 5.0, x, 1, 0 ); * // x => [ -10.0, 5.0, 15.0, -25.0, 20.0, 0.0, -5.0, -15.0 ] */ // MODULES // var join = require( 'path' ).join; var tryRequire = require( '@stdlib/utils/try-require' ); var dscal = require( './main.js' ); // MAIN // var tmp = tryRequire( join( __dirname, './native.js' ) ); if ( !(tmp instanceof Error) ) { dscal = tmp; } // EXPORTS // module.exports = dscal;