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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 18x 18x 18x 18x 18x 2x 2x 2x 2x 2x | /**
* @license Apache-2.0
*
* Copyright (c) 2024 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 base = require( './base.js' );
// MAIN //
/**
* Returns an updated sum of squares represented in scaled form.
*
* @param {NonNegativeInteger} N - number of indexed elements
* @param {Float64Array} X - input array
* @param {integer} strideX - stride length for `X`
* @param {Float64Array} scale - array containing a single element which specifies the scaling factor and is overwritten by the updated scaling factor
* @param {Float64Array} sumsq - array containing a single element which specifies the basic sum of squares from which output is factored out and is overwritten by the updated sum of squares
* @returns {void}
*
* @example
* var Float64Array = require( '@stdlib/array/float64' );
*
* var X = new Float64Array( [ 1.0, 2.0, 3.0, 4.0 ] );
* var scale = new Float64Array( [ 1.0 ] );
* var sumsq = new Float64Array( [ 0.0 ] );
*
* dlassq( 4, X, 1, scale, sumsq );
* // scale => <Float64Array>[ 1.0 ]
* // sumsq => <Float64Array>[ 30.0 ]
*/
function dlassq( N, X, strideX, scale, sumsq ) {
var ox;
ox = stride2offset( N, strideX );
base( N, X, strideX, ox, scale, 0, sumsq, 0 );
}
// EXPORTS //
module.exports = dlassq;
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