@stdlib/math-base-special-factorialln
Version:
Evaluate the natural logarithm of the factorial function.
53 lines (45 loc) • 1.17 kB
JavaScript
/**
* @license Apache-2.0
*
* Copyright (c) 2018 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';
/**
* Evaluate the natural logarithm of the factorial function.
*
* @module @stdlib/math-base-special-factorialln
*
* @example
* var factorialln = require( '@stdlib/math-base-special-factorialln' );
*
* var v = factorialln( 3.0 );
* // returns ~1.792
*
* v = factorialln( 2.4 );
* // returns ~1.092
*
* v = factorialln( -1.0 );
* // returns NaN
*
* v = factorialln( -1.5 );
* // returns ~1.266
*
* v = factorialln( NaN );
* // returns NaN
*/
// MODULES //
var main = require( './main.js' );
// EXPORTS //
module.exports = main;