decimal numbers
Frank Millman
frank at chagford.com
Sat Feb 15 05:04:17 EST 2014
"Luke Geelen" <luke.geelen at gmail.com> wrote in message
news:ec88852e-1384-4aa5-834b-85135be94ab9 at googlegroups.com...
> Op zaterdag 15 februari 2014 10:18:36 UTC+1 schreef Luke Geelen:
> hello,
>
> i have been working on a python resistor calculator to let my class show
> what you can do with python.
>
> now i have a script that makes the more speekable value of the resistance
> (res)
>
[...]
>
> i commented it because it doesn't work (yet), when i have a resistance of
>
> 9.9 Giga ohms it says it is 9 giga ohms. it seems to work with natural
> number, anyway of using decimals insted so that it says : the resistance
> is 9.9 Giga Ohms instead of 9 ?
>
You don't say which version of python you are using.
If you are using python2, an integer divided by an integer always returns an
integer -
>>> 10/3
3
It was changed in python3 to return a float -
>>> 10/3
3.3333333333333335
You can reproduce the python3 behaviour in python2 by adding a 'future'
directive -
>>> from __future__ import division
>>> 10/3
3.3333333333333335
HTH
Frank Millman
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