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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';
/**
* LAPACK auxiliary routine to apply a plane rotation with real cosine and complex sine.
*
* @module @stdlib/lapack/base/crot
*
* @example
* var Complex64Array = require( '@stdlib/array/complex64' );
* var Complex64 = require( '@stdlib/complex/float32/ctor' );
* var crot = require( '@stdlib/lapack/base/crot' );
*
* var cx = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );
* var cy = new Complex64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
* var s = new Complex64( 0.6, 0 );
*
* crot( cx.length, cx, 1, cy, 1, 0.8, s );
*
* var z = cy.get( 0 );
* // returns <Complex64>[ ~-0.6, ~-1.2]
*
* z = cx.get( 0 );
* // returns <Complex64>[ ~0.8, ~1.6 ]
*
* @example
* var Complex64Array = require( '@stdlib/array/complex64' );
* var Complex64 = require( '@stdlib/complex/float32/ctor' );
* var crot = require( '@stdlib/lapack/base/crot' );
*
* var cx = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );
* var cy = new Complex64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
* var s = new Complex64( 0.6, 0 );
*
* crot.ndarray( cx.length, cx, 1, 0, cy, 1, 0, 0.8, s );
*
* var z = cy.get( 0 );
* // returns <Complex64>[ ~-0.6, ~-1.2 ]
*
* z = cx.get( 0 );
* // returns <Complex64>[ ~0.8, ~1.6 ]
*/
// MODULES //
var join = require( 'path' ).join;
var tryRequire = require( '@stdlib/utils/try-require' );
var isError = require( '@stdlib/assert/is-error' );
var main = require( './main.js' );
// MAIN //
var crot;
var tmp = tryRequire( join( __dirname, './native.js' ) );
if ( isError( tmp ) ) {
crot = main;
} else {
crot = tmp;
}
// EXPORTS //
module.exports = crot;
// exports: { "ndarray": "crot.ndarray" }
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