Giac/Xcas updates ported to HP Prime?

[retoa]

a^0=1 for a<>0 (1)

0^n=0 for n<>0 (2)

0^0=? that gives 1 if you apply (1) and 0 if you apply (2), both of which are correct, so 0^0 is undefined.
You can not set it as 1 per default, it would be in contradiction with (2) , nor you can set it to 0, as it would be in contradiction with (1).

Easy but interesting math...