text: // Copyright 2009 the Sputnik authors.  All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  
  /*---
  info: >
      If y is +Infinity and x is finite, Math.atan2(y,x) is an
      implementation-dependent approximation to +PI/2
  es5id: 15.8.2.5_A18
  description: >
      Checking if Math.atan2(y,x) is an approximation to +PI/2, where y
      is +Infinity and x is finite
  includes:
      - $FAIL.js
      - math_precision.js
      - math_isequal.js
  ---*/
  
  // CHECK#1
  var y = +Infinity;
  var x = new Array();
  x[0] = 0.000000000000001;
  x[1] = 1;
  x[2] = 1.7976931348623157E308; //largest finite number
  x[3] = -0.000000000000001;
  x[4] = -1;
  x[5] = -1.7976931348623157E308; //largest (by module) finite number 
   
  var xnum = 6;
  
  for (var i = 0; i < xnum; i++)
  {
  	if (!isEqual(Math.atan2(y,x[i]), (Math.PI)/2))
  		$FAIL("#1: Math.abs(Math.atan2(" + y + ", " + x[i] + ") - (Math.PI/2)) >= " + prec);
  }
  