[issue19807] calculation of standard math returns incorrect value

2013-11-27 Thread 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

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

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[issue19807] calculation of standard math returns incorrect value

2013-11-27 Thread chili 

chili added the comment:

Thx for help.

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[issue19807] calculation of standard math returns incorrect value

2013-11-26 Thread chili 

Changes by chili rbachm...@yahoo.com:


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title: calculation of  standard math - calculation of  standard math returns 
incorrect value

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