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* @license Apache-2.0
*
* Copyright (c) 2025 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';
// MODULES //
var stride2offset = require( '@stdlib/strided/base/stride2offset' );
var ndarray = require( './ndarray.js' );
// MAIN //
/**
* Scales a double-precision complex floating-point vector by a double-precision complex floating-point constant.
*
* @param {PositiveInteger} N - number of indexed elements
* @param {Complex128} alpha - constant
* @param {Complex128Array} x - input array
* @param {integer} strideX - `x` stride length
* @returns {Complex128Array} input array
*
* @example
* var Complex128Array = require( '@stdlib/array/complex128' );
* var Complex128 = require( '@stdlib/complex/float64/ctor' );
*
* var x = new Complex128Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
* var alpha = new Complex128( 2.0, 2.0 );
*
* zscal( 3, alpha, x, 1 );
* // x => <Complex128Array>[ -2.0, 6.0, -2.0, 14.0, -2.0, 22.0 ]
*/
function zscal( N, alpha, x, strideX ) {
var ox = stride2offset( N, strideX );
return ndarray( N, alpha, x, strideX, ox );
}
// EXPORTS //
module.exports = zscal;
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