Exactly what I was looking for.
I’ve been looking for a stack-based calculator like this for quite a while, resembling how RPL (not RPN) calculators like the HP48 used to work.
If you have never used a calculator like this, give
it a try. This type of calculator becomes so addictive that you’ll never want to use anything else.Absolutely perfect
Takes a scary concept and makes it beautiful and simple. The only calculator I'll ever need. Wonderful job!