Comment #3 on issue 1975 by [email protected]: Precision of trignometric
functions is low
http://code.google.com/p/v8/issues/detail?id=1975
test262/S15.8.2.16_A7 tests whether (within a certain tolerance)
sin(6.283185307179586) == -2.4492935982947064e-16
Note that this value is very close to 2*Pi, and sin(2*Pi) = 0. Usual
algorithms for sine have low precision at this point. Both Firefox and
Chrome fail in this test on Linux but succeed on Windows and Mac OS X
because the value of the sine function depends on compiler/platform.
An arbitrary-precision calculator returns approximately 4.7692E-16.
Similar to test262/S15.8.2.18_A7 this test should not test against the
(very unprecise) result of any particular implementation.
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