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157 lines
4.3 KiB
JavaScript
157 lines
4.3 KiB
JavaScript
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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gTestfile = '15.8.2.4.js';
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/**
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File Name: 15.8.2.4.js
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ECMA Section: 15.8.2.4 atan( x )
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Description: return an approximation to the arc tangent of the
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argument. the result is expressed in radians and
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range is from -PI/2 to +PI/2. special cases:
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- if x is NaN, the result is NaN
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- if x == +0, the result is +0
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- if x == -0, the result is -0
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- if x == +Infinity, the result is approximately +PI/2
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- if x == -Infinity, the result is approximately -PI/2
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Author: christine@netscape.com
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Date: 7 july 1997
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*/
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var SECTION = "15.8.2.4";
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var VERSION = "ECMA_1";
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var TITLE = "Math.atan()";
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var BUGNUMBER="77391";
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startTest();
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writeHeaderToLog( SECTION + " "+ TITLE);
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new TestCase( SECTION,
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"Math.atan.length",
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1,
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Math.atan.length );
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new TestCase( SECTION,
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"Math.atan()",
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Number.NaN,
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Math.atan() );
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new TestCase( SECTION,
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"Math.atan(void 0)",
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Number.NaN,
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Math.atan(void 0) );
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new TestCase( SECTION,
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"Math.atan(null)",
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0,
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Math.atan(null) );
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new TestCase( SECTION,
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"Math.atan(NaN)",
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Number.NaN,
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Math.atan(Number.NaN) );
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new TestCase( SECTION,
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"Math.atan('a string')",
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Number.NaN,
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Math.atan("a string") );
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new TestCase( SECTION,
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"Math.atan('0')",
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0,
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Math.atan('0') );
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new TestCase( SECTION,
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"Math.atan('1')",
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Math.PI/4,
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Math.atan('1') );
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new TestCase( SECTION,
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"Math.atan('-1')",
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-Math.PI/4,
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Math.atan('-1') );
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new TestCase( SECTION,
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"Math.atan('Infinity)",
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Math.PI/2,
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Math.atan('Infinity') );
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new TestCase( SECTION,
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"Math.atan('-Infinity)",
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-Math.PI/2,
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Math.atan('-Infinity') );
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new TestCase( SECTION,
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"Math.atan(0)",
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0,
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Math.atan(0) );
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new TestCase( SECTION,
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"Math.atan(-0)",
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-0,
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Math.atan(-0) );
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new TestCase( SECTION,
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"Infinity/Math.atan(-0)",
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-Infinity,
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Infinity/Math.atan(-0) );
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new TestCase( SECTION,
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"Math.atan(Infinity)",
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Math.PI/2,
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Math.atan(Number.POSITIVE_INFINITY) );
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new TestCase( SECTION,
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"Math.atan(-Infinity)",
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-Math.PI/2,
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Math.atan(Number.NEGATIVE_INFINITY) );
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new TestCase( SECTION,
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"Math.atan(1)",
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Math.PI/4,
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Math.atan(1) );
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new TestCase( SECTION,
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"Math.atan(-1)",
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-Math.PI/4,
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Math.atan(-1) );
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test();
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