All files / math/base/special/rcbrt/lib main.js

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/**
* @license Apache-2.0
*
* Copyright (c) 2022 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 cbrt = require( '@stdlib/math/base/special/cbrt' );
 
 
// MAIN //
 
/**
* Compute the reciprocal cube root of a double-precision floating-point number.
*
* @param {number} x - input value
* @returns {number} reciprocal cube root
*
* @example
* var v = rcbrt( 8.0 );
* // returns 0.5
*
* @example
* var v = rcbrt( 1000.0 );
* // returns 0.1
*
* @example
* var v = rcbrt( 0.0 );
* // returns Infinity
*
* @example
* var v = rcbrt( Infinity );
* // returns 0.0
*
* @example
* var v = rcbrt( -8.0 );
* // returns -0.5
*
* @example
* var v = rcbrt( NaN );
* // returns NaN
*/
function rcbrt( x ) {
	return 1.0 / cbrt( x );
}
 
 
// EXPORTS //
 
module.exports = rcbrt;