[Python-ideas] Python Numbers as Human Concept Decimal System

[Alexander Belopolsky]

On Sat, Mar 8, 2014 at 7:39 PM, Steven D'Aprano <steve at pearwood.info> wrote:

> Computer maths cannot fail to give surprises.
>
> py> x = 1/Decimal(3)
> py> sum([x, x, x]) == 1
> False
>
> "No surprises" is simply an impossible request.
>

Maybe, but there is nothing impossible in eliminating this particular
surprise:

q)x:1 % 3f
q)x
0.3333333
q)1 = x + x + x
1b

http://en.wikipedia.org/wiki/Q_(programming_language_from_Kx_Systems)

I am not suggesting that Python should behave like Q in this respect, just
showing that this particular wart is not present in all languages.
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