Natural Logarithm
![dependencies](https://img.shields.io/david/stdlib-js/math-base-special-ln)
Evaluate the natural logarithm.
Installation
npm install @stdlib/math-base-special-ln
Usage
var ln = require( '@stdlib/math-base-special-ln' );
ln( x )
Evaluates the natural logarithm.
var v = ln( 4.0 );
v = ln( 0.0 );
v = ln( Infinity );
v = ln( NaN );
For negative numbers, the natural logarithm is not defined.
var v = ln( -4.0 );
Examples
var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var ln = require( '@stdlib/math-base-special-ln' );
var x;
var i;
for ( i = 0; i < 100; i++ ) {
x = round( randu() * 100.0 );
console.log( 'ln(%d) = %d', x, ln( x ) );
}
Notice
This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
License
See LICENSE.
Copyright
Copyright © 2016-2021. The Stdlib Authors.