text: // Copyright 2009 the Sputnik authors.  All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  
  /**
   * If y>0 and x is -0, Math.atan2(y,x) is an implementation-dependent approximation to +PI/2
   *
   * @path ch15/15.8/15.8.2/15.8.2.5/S15.8.2.5_A3.js
   * @description Checking if Math.atan2(y,x) is an approximation to +PI/2, where y>0 and x is -0
   */
  
  $INCLUDE("math_precision.js");
  $INCLUDE("math_isequal.js"); 
  
  // CHECK#1
  x = -0;
  //prec = 0.00000000000001;
  y = new Array();
  y[0] = 0.000000000000001;
  y[2] = +Infinity;
  y[1] = 1; 
  ynum = 3;
  
  for (i = 0; i < ynum; i++)
  {
  	if (!isEqual(Math.atan2(y[i],x), (Math.PI)/2))
  		$FAIL("#1: Math.abs(Math.atan2(" + y[i] + ", " + x + ") - ((Math.PI)/2)) >= " + prec);
  }
  
  