"didier deshommes" <[EMAIL PROTECTED]> writes:
> On Thu, Mar 6, 2008 at 4:22 PM, Nikos Apostolakis <[EMAIL PROTECTED]> wrote:
>>
>> Hello group,
>>
>> Is the following behavior a bug, or am I missing some fundamental
>> understanding about how Integer works?
>>
>> ,----
>> | sage: num = RealField(12).random_element(1,9.99)
>> | sage: num
>> | 3.18
>> | sage: num*100
>> | 318.
>> | sage: Integer(_)
>
> I can confirm this. I think numbers are rounded up when they are
> printed, which leads to confusion:
> {{{
> sage: num = RealField(12).random_element(1,9.99)*100
> sage: num
> 406.
> }}}
>
> But num is actually ~405.725! :
> {{{
> sage: num -406
> -0.375
>
> }}}
>
> And so ZZ(num) will fail, as it should, since num ~ 405.725.
>
Hm, I see! This behavior is very confusing. Wouldn't you say it *is*
a bug?
Anyway to get what I expected to get I can do something like
sage: Integer(sage_eval(str(num))*100)
318
but it seems like an ugly hack. Is there another way?
Thanks,
Nikos
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