Tangent
Evaluate the tangent of a number.
The tangent is defined as
Installation
npm install @stdlib/math-base-special-tan
Usage
var tan = require( '@stdlib/math-base-special-tan' );
tan( x )
Evaluates the tangent of a number
(in radians).
var v = tan( 0.0 );
// returns ~0.0
v = tan( -3.141592653589793/4.0 );
// returns ~-1.0
v = tan( 3.141592653589793/4.0 );
// returns ~1.0
v = tan( NaN );
// returns NaN
Examples
var linspace = require( '@stdlib/array-base-linspace' );
var PI = require( '@stdlib/constants-float64-pi' );
var tan = require( '@stdlib/math-base-special-tan' );
var x = linspace( -PI/2.0, PI/2.0, 100 );
var i;
for ( i = 0; i < x.length; i++ ) {
console.log( tan( x[ i ] ) );
}
See Also
-
@stdlib/math/base/special/cos
: compute the cosine of a number. -
@stdlib/math/base/special/sin
: compute the sine of a number.
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
License
See LICENSE.
Copyright
Copyright © 2016-2022. The Stdlib Authors.