[Webkit-unassigned] [Bug 62629] New: Sputnik math test cases issue

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=62629

           Summary: Sputnik math test cases issue
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mahesh.kulkarni at nokia.com
                CC: hausmann at webkit.org, laszlo.1.gombos at nokia.com,
                    tonikitoo at webkit.org, kenneth at webkit.org,
                    kling at webkit.org


Couple of Sputnik test cases are failing on all browser's 

fast/js/sputnik/Conformance/15_Native_Objects/15.8_Math/15.8.2/15.8.2.16_sin/S15.8.2.16_A7.html
fast/js/sputnik/Conformance/15_Native_Objects/15.8_Math/15.8.2/15.8.2.18_tan/S15.8.2.18_A7.html

-------------------------------------------------------------

Because "libc's sin(6.28318530717958620000) != Javascript.Math.sin(6.28318530717958620000)"!!

Tested the above javascript on Chrome, Firefox, Opera and QtTestbrowser all results in,

S15.8.2.16_A7
FAIL SputnikError: 

x = 6.283185307179586 

libc.sin(x) = -2.4492935982947064e-16 
Math.sin(x) = -2.4492127076447545e-16 

Math.abs(libc.sin(x) - Math.sin(x)) > 1.9721522630525295e-31 

-------------------------------------------------------------

Tested few online calculators (for example http://www.calcoolate.com/) and sin(6.283185307179586) results in same value of JS::Math.sin(). Any thoughts on how to fix this?

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