test262/test/built-ins/Math/atan/S15.8.2.4_A1.js

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// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: If x is NaN, Math.atan(x) is NaN
2014-07-25 00:41:42 +02:00
es5id: 15.8.2.4_A1
description: Checking if Math.atan(NaN) is NaN
---*/
// CHECK#1
var x = NaN;
if (!isNaN(Math.atan(x)))
{
$ERROR("#1: 'var x=NaN; isNaN(Math.atan(x)) === false'");
}