perform calculations for which the simple calculator apps on your phone are too limited C'mon now. I know this guy's too smart to think the only calculator app

perform calculations for which the simple calculator apps on your phone are too limited C'mon now. I know this guy's too smart to think the only calculator apps are the ones that come preinstalled. There exists every conceivable calculator program, including half a dozen HP-25 emulators. You're allowed to like using an old calculator just because it feels good and you enjoy it.