All files / blas/base/srotmg/lib main.js

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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 Float32Array = require( '@stdlib/array/float32' );
var fcn = require( './assign.js' );
 
 
// MAIN //
 
/**
* Construct the parameters for a modified Givens plane rotation.
*
* @param {number} d1 - scaling factor for the first vector component
* @param {number} d2 - scaling factor for the second vector component
* @param {number} x1 - first component of the first vector
* @param {number} y1 - first component of the second vector
* @returns {Float32Array} output array containing the rotation parameters
*
* @example
* var out = srotmg( 5.0, 4.0, 1.0, -2.0 );
* // returns <Float32Array>[ 1.0, -0.625, 0.0, 0.0, -0.5 ]
*/
function srotmg( d1, d2, x1, y1 ) {
	var out = new Float32Array( 5 );
	return fcn( d1, d2, x1, y1, out, 1, 0 );
}
 
 
// EXPORTS //
 
module.exports = srotmg;