Mark Dickinson [EMAIL PROTECTED] added the comment:
Closing as invalid.
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resolution: - invalid
status: open - closed
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Python tracker [EMAIL PROTECTED]
http://bugs.python.org/issue2937
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Mark Dickinson [EMAIL PROTECTED] added the comment:
Okay; so this is definitely not a Python bug---it's a well-known
and well-documented problem with IA32 floating-point. And I accept
that it's really not Python's responsibility to document this, either.
Nevertheless, it was a surprise to me
New submission from Mark Dickinson [EMAIL PROTECTED]:
On some older Intel 32-bit hardware, under Linux, floating-point
operations don't always give correctly rounded results. Here's an
example involving addition, on SuSE Linux 10.2/Xeon.
Python 2.6a3+ (trunk:63521, May 21 2008, 15:40:39)
Martin v. Löwis [EMAIL PROTECTED] added the comment:
Python (the language) makes no guarantee itself on what the precise
semantics of floating-point operations is. This is documented in
http://docs.python.org/ref/types.html
These represent machine-level double precision floating point numbers.
