/*
 *  call-seq:
 *     Math.atan2(y, x)  => float
 *  
 *  Computes the arc tangent given <i>y</i> and <i>x</i>. Returns
 *  -PI..PI.
 *     
 */

VALUE
math_atan2(VALUE obj, VALUE y, VALUE x)
{
    Need_Float2(y, x);
    return DOUBLE2NUM(atan2(RFLOAT_VALUE(y), RFLOAT_VALUE(x)));
}