JSTests/test262/test/built-ins/Math/atan/S15.8.2.4_A2.js - WebKit - Git at Google

 // 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 +0, Math.atan(x) is +0
 es5id: 15.8.2.4_A2
 description: Checking if Math.atan(+0) equals to +0
 ---*/

 assert.sameValue(Math.atan(0), 0);
	// 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 +0, Math.atan(x) is +0
	es5id: 15.8.2.4_A2
	description: Checking if Math.atan(+0) equals to +0
	---*/

	assert.sameValue(Math.atan(0), 0);