On 03/15/2010 07:20 PM, Raymond Toy wrote:
> On 3/15/10 1:44 PM, Luigi Marino wrote:
>> Can Maxima
>> integrate numerical
>> the function x^x^x from 1 to 6 or from 5 to 6 ?
>> It is a problem of the ISSAC'97 Systems Challenge.
>>
> No, maxima cannot because it currently does not have (I think) a
> numerical integration routine that supports bigfloats. Considering that
> 5^5^5 is about 2b2184, the integral is at least that large, which well
> exceeds the range of double float numbers.
I believe that the romberg routine does handle bigfloats, that's the
main reason it's still around. There was some discussion about
eliminating romberg a while back on the list but it was decided to keep
it exactly for this reason.