On the computer, I use Emacs' Calc [0]. Having such a powerful calculator right there and built into my editor is compelling.
On the go, I use Droid48 [1]. As much as I love my real HP-48G, I find that it's similar to the saying about cameras: "the best camera^H^H^H^H^H^Hcalculator is the one that's with you."
On the go, I use Droid48 [1]. As much as I love my real HP-48G, I find that it's similar to the saying about cameras: "the best camera^H^H^H^H^H^Hcalculator is the one that's with you."
(And in case you can't tell, I like RPN.)
[0] https://www.gnu.org/software/emacs/manual/html_node/calc/ind...
[1] https://play.google.com/store/apps/details?id=org.ab.x48