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* @license Apache-2.0
*
* Copyright (c) 2026 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 Float32Array = require( '@stdlib/array/float32' );
var addon = require( './../src/addon.node' );
// MAIN //
/**
* Constructs a Givens plane rotation.
*
* @param {number} a - rotational elimination parameter
* @param {number} b - rotational elimination parameter
* @param {Float32Array} out - output array
* @param {integer} stride - index increment
* @param {NonNegativeInteger} offset - starting index
* @returns {Float32Array} output array
*
* @example
* var Float32Array = require( '@stdlib/array/float32' );
*
* var out = new Float32Array( 4 );
*
* var y = srotg( 0.0, 2.0, out, 1, 0 );
* // returns <Float32Array>[ 2.0, 1.0, 0.0, 1.0 ]
*
* var bool = ( y === out );
* // returns true
*/
function srotg( a, b, out, stride, offset ) {
var tmp = new Float32Array( [ a, b, 0.0, 0.0 ] );
addon( tmp );
out[ offset ] = tmp[ 0 ];
out[ offset + stride ] = tmp[ 1 ];
out[ offset + ( 2 * stride ) ] = tmp[ 2 ];
out[ offset + ( 3 * stride ) ] = tmp[ 3 ];
return out;
}
// EXPORTS //
module.exports = srotg;
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