@stdlib/math-base-special-expm1

Compute exp(x) - 1.

Usage no npm install needed!

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README

expm1

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Compute exp(x) - 1.

Installation

npm install @stdlib/math-base-special-expm1

Usage

var expm1 = require( '@stdlib/math-base-special-expm1' );

expm1( x )

Computes exp(x) - 1, where exp(x) is the natural exponential function.

var v = expm1( 0.2 );
// returns ~0.221

v = expm1( -9.0 );
// returns ~-1.0

v = expm1( 0.0 );
// returns 0.0

v = expm1( NaN );
// returns NaN

Examples

var randu = require( '@stdlib/random-base-randu' );
var expm1 = require( '@stdlib/math-base-special-expm1' );

var x;
var i;

for ( i = 0; i < 100; i++ ) {
    x = (randu()*10.0) - 5.0;
    console.log( 'e^%d - 1 = %d', x, expm1( x ) );
}

See Also

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.

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License

See LICENSE.

Copyright

Copyright © 2016-2022. The Stdlib Authors.