Hi Robert,
Will the fix of the interaction with Maxima allow conservation of
precision of arguments passed through Maxima? This would satisfy my
needs. Depending on how long this is going to take, I would like Mike's
interim fix to be implemented. It doesn't make anything worse compared
with the current state, as currently latexification gives a false sense
of precision, anyway. This does certainly not fit my definition of
usefulness. We would just have to make sure that the interim fix is
removed again when the maxima interaction is fixed.
Stan
Robert Bradshaw wrote:
> On Nov 18, 2008, at 5:57 AM, Stan Schymanski wrote:
>
>
>> Ah, I see:
>>
>> dummy1 = RealField(8)(0.1);dummy1
>> 0.10
>>
>> dummy2 = RealField(16)(0.1);dummy2
>> 0.1000
>>
>> latex(x*dummy1)
>> {0.1001 x}
>>
>> latex(x*dummy2)
>> {0.1 x}
>>
>> This is not quite what one would expect. However, the behaviour before
>> the fix was not much better in my opinion, as the precision was not
>> obvious from the latex output, either:
>>
>> sage: dummy1 = RealField(8)(0.1);dummy1
>> 0.10
>> sage: dummy2 = RealField(16)(0.1);dummy2
>> 0.1000
>> sage: latex(x*dummy1)
>> {0.100100000000000 x}
>> sage: latex(x*dummy2)
>> {0.100000000000000 x}
>>
>> Obviously, the fix does not fix all the problems, but it does make
>> latex output much more useful. Would you agree?
>>
>
> That depends on your definition of useful. Personally, I think it's
> useful to see how many digits of precision a given number has, and
> for most things it works fine.
>
> The issue here is the interaction with Maxima, which is being fixed.
> Making it so any latexification of all real numbers is truncated is
> (IMHO) not the right fix because one component abuses precisions.
>
> - Robert
>
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