/**
* Returns the arc tangent of the specified value, in the range of -<i>pi</i>/2 through
* <i>pi</i>/2.
*
* @param x the value whose arc tangent is to be returned.
* @return the arc tangent in radians for the specified value.
* @see <a href="http://mathworld.wolfram.com/InverseTangent.html">Inverse Tangent -- from
* MathWorld</a>
*/
public static double atan(double x) {
return MathLib._atan(x);
}
