I realised reading this that, even though I used to be quite adept with these common four-function calculators, I have since forgotten most of their operation. The past ten years or so I have exclusively been using RPN calculators – I find them so much easier to work with, and going by this article, possibly even easier to implement sensibly?
(My main drivers are Emacs Calc on the computer and RealCalc on Android devices. For kitchen work I use a slide rule, which is something I think more people should do! There is nothing better for translating proportions.)
(My main drivers are Emacs Calc on the computer and RealCalc on Android devices. For kitchen work I use a slide rule, which is something I think more people should do! There is nothing better for translating proportions.)