@stdlib/math-base-special-atan

atan

Compute the arctangent of a number.

Installation

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

Usage

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

atan( x )

Computes the arctangent of a number.

var v = atan( 0.0 );
// returns ~0.0

v = atan( -3.141592653589793/2.0 );
// returns ~-1.004

v = atan( 3.141592653589793/2.0 );
// returns ~1.004

v = atan( NaN );
// returns NaN

Examples

var linspace = require( '@stdlib/array-base-linspace' );
var atan = require( '@stdlib/math-base-special-atan' );

var x = linspace( -1000.0, 1000.0, 100 );

var i;
for ( i = 0; i < x.length; i++ ) {
    console.log( atan( x[ i ] ) );
}

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See Also

• @stdlib/math/base/special/acos: compute the arccosine of a number.
• @stdlib/math/base/special/asin: compute the arcsine of a number.
• @stdlib/math/base/special/atanh: compute the hyperbolic arctangent of a number.

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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.

Community

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License

See LICENSE.

Copyright

Copyright © 2016-2022. The Stdlib Authors.