Eric S Fraga <e.fraga@ucl.ac.uk> wrote: > Emacs Calc if using the computer, HP-48x simulator on my phone > otherwise. If you liked doing calculations as in the HP 48, try the orpie program in a terminal (Debian package of the same name)... or the x48 emulator on Linux (GUI, very impressive). More scripting-oriented, dc can be used to compute in Reverse Polish Notation: $ echo '3 5 + 2 / p' | dc 4 $ Regards -- Florent