On that note, I always end up using an HP 48g emulator on my phone as my main calculator app. I've been using Droid48 for many years now [0]. I'd initially lo

On that note, I always end up using an HP 48g emulator on my phone as my main calculator app. I've been using Droid48 for many years now [0]. I'd initially looked at most of the native mobile calculator apps before realizing that since I was comparing them all with the HP 48 experience, I might as well just use an emulated HP 48 and be done with it. On a laptop or desktop, though, I've come to use Emacs Calc [1] pretty heavily. There's a surprising amount of power in it. It's pretty cool to be able to do things like operate on matrices of symbolic expressions via a stack interface. [0] https://play.google.com/store/apps/details?id=org.ab.x48 https://play.google.com/store/apps/details?id=org.ab.x48 [1] https://www.gnu.org/software/emacs/manual/html_mono/calc.html https://www.gnu.org/software/emacs/manual/html_mono/calc.htm...