Much like developing any non-trivial program, there is more than one way to do it, and if you get ten different programmers, you might get ten different ways of writing a calculator (unless they all ...
It's been more than 20 years since I bought a physical, hold-it-in-your-hand calculator. I've bought a couple of special-purpose calculator apps, but the very last one I bought was the TI-1726, which ...