[Tutor] A couple newbie questions about Python

[Alan Gauld]

On 12/06/14 09:18, Mark Lawrence wrote:
> Besides Alan's previous statement about using integers you can also use
> things like Python's decimal module see
> https://docs.python.org/3/library/decimal.html#module-decimal

Although Decimal doesn't solve the issue of rounding errors for 
financial calculations (neither do pennies) nor the issues of
repeating results like 1/7.... It just moves them into the
more familiar territory of decimal numbers rather than binary.
So at least what you write is represented accurately.

As Steven said in his reply, floating point on computers is hard.
-- 
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.flickr.com/photos/alangauldphotos