[issue19807] calculation of standard math returns incorrect value

[Mark Dickinson]

Mark Dickinson added the comment:

Sorry; this is just the way that (binary) floating-point works.  See http://docs.python.org/2/tutorial/floatingpoint.html for more (or Google 'binary floating point' for a host of references).

If you're doing financial calculations, you may want to look into the decimal module: http://docs.python.org/2/library/decimal.html

----------
nosy: +mark.dickinson
resolution:  -> invalid
status: open -> closed

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19807>
_______________________________________