atan

Compute the arctangent of a number.

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 ] ) );
}