atan.c File Reference

#include "../math.h"

Functions
double	atan (double x)
	Compute arc tangent. More...

Function Documentation

atan()

double atan

(

double

x

)

Compute arc tangent.

The atan functions compute the principal value of the arc tangent of x.

Parameters

x	Value whose arc tangent is computed.

Returns

The atan functions return arctan x in the interval [−π /2, +π /2] radians.