:00000,?>: as result of interval

[Beginner]

Hello,

I begin to realise how complex it must be to creat such a marvelous tool as a calculator and how much time it must take until it is "ready"... And the HP Prime is worth investing all the energy - it has really great features. I hope that it will be able to replace the TI Nspire in the long run which is used now by so many schools. In the end the HP Prime will be far easier to use - and I really like it. :-)) Thanks for all the efforts!

And now back to the minutiae...

If I do not tic "exact" in the CAS settings, I get numeric solutions of the intervall in the CAS mode and in the home mode as well. That solves the problem for now.

If I tick "exact" in the CAS settings, I get the "non normalised" number in the home mode. In the CAS mode I get the following solution:

1/3*(Gamma (1/3, -216)-Gamma (1/3))-1/3*(Gamma ( 1/3,0)-Gamma(1/3)) 5,96393809188E91

Now I tried to alter the limits of the intervall (after deleting the tick at the "exact"-box in the CAS settings)). I found out, that it is possible to increase the upper end until 8.5 (solution: 2,3747181486 E264).

Beyond that limit the calculator shows an hourglass and after several seconds it displays "Error: Invalid input" - allthough the calculator can calculate numbers of 9,9999999E499.

So it should be possible to increase the limit even further and get a valid result.