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Message from discussion Python comparing float
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Russell Jones  
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 More options Aug 28 2012, 3:26 pm
From: Russell Jones <russell.jo...@gmail.com>
Date: Tue, 28 Aug 2012 20:25:58 +0100
Local: Tues, Aug 28 2012 3:25 pm
Subject: Re: [pygame] Python comparing float
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Alternatively, in the numpy module (part of the Scientific Tools for Python
http://www.scipy.org/ ) there is the linspace function, which you could use
like this
for x in numpy.linspace(0,2,21):
    print(x)

Russell

On 23 August 2012 14:34, Ricardo Franco <ricardo.kr...@gmail.com> wrote:

> Well, this is a good idea, I go do this way. tks

> 2012/8/22 Greg Ewing <greg.ew...@canterbury.ac.nz>

>> Ricardo Franco wrote:

>>>     That's why when you are comparing floating point numbers, you always
>>>     have to check if they are within some small error value from each
>>>     other. How large that value is depends on your particular use case.

>> It's even better if you can avoid comparing floats for
>> equality at all. You can do that in this case by using an
>> integer loop counter and computing the float value from it:

>> >>> for i in xrange(11):
>> ...    rate = 1.0 + i * 0.1
>> ...    print rate
>> ...
>> 1.0
>> 1.1
>> 1.2
>> 1.3
>> 1.4
>> 1.5
>> 1.6
>> 1.7
>> 1.8
>> 1.9
>> 2.0

>> --
>> Greg

> --
> Ricardo Franco Andrade             @ricardokrieg

> ( Game | Desktop | Web ) Developer

> email: ricardo.kr...@gmail.com
> contact: +55 (86) 9958 9725
>              +55 (86) 9436 0830
> twitter: twitter.com/ricardokrieg
> facebooK: https://www.facebook.com/krieg.ricardo
> github: https://github.com/ricardokrieg


 
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