I don't find it an interesting problem at all. Generations of mathematicians and scientists discovered secrets of the universe and made calculations without us

I don't find it an interesting problem at all. Generations of mathematicians and scientists discovered secrets of the universe and made calculations without using calculators. 90% of my math tests were done without calculators. Science tests were only about calculating out formulas -- many of which needed to be memorized anyway. I think you either embrace the technology fully, or you allow only the basic scientific calculators -- something like the Casio FX 240 ($8 on Amazon). Stop artificially limiting what I can do with a gadget, just because of some stupid exam rule that hasn't applied to me in 30 years.