PEP 260: simplify xrange()

Carsten Geckeler uioziaremwpl at spammotel.com
Wed Jun 27 21:08:50 CEST 2001


On Wed, 27 Jun 2001, Jeff Shannon wrote:
[snip]
> To make a long story short, the discussion regarding FP boils down to the
> fact that "1.0" cannot be exactly represented in FP.

Well, 1.0 *can* be represented exactly in floating point.  Even 0.5.

>>> 0.5
0.5
>>> 1.0
1.0
>>> 0.1
0.10000000000000001
>>> 438.9375
438.9375
>>> 438.937
438.93700000000001
>>> 438.9374
438.93740000000003

Now can think about the reason, why some real numbers can be represented
exactly in FP, and some not. ;)

Cheers, Carsten
-- 
Carsten Geckeler





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