All files zrotg.js

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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 Float64Array = require( '@stdlib/array/float64' );
var assign = require( './assign.js' );
 
 
// MAIN //
 
/**
* Constructs a Givens plane rotation.
*
* @param {Complex128} za - rotational elimination parameter
* @param {Complex128} zb - rotational elimination parameter
* @returns {Float64Array} output array
*
* @example
* var Complex128 = require( '@stdlib/complex/float64/ctor' );
*
* var za = new Complex128( 5.0, 6.0 );
* // returns <Complex128>
*
* var zb = new Complex128( 0.0, 0.0 );
* // returns <Complex128>
*
* var out = zrotg( za, zb );
* // returns <Float64Array>[ 5.0, 6.0, 1.0, 0.0, 0.0 ]
*/
function zrotg( za, zb ) {
	return assign( za, zb, new Float64Array( 5 ), 1, 0 );
}
 
 
// EXPORTS //
 
module.exports = zrotg;