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by fouc 220 days ago
I used an HP-48G heavily in school.

Just now I tried out the RPN calculator apps on the phone and I've realized that the enter key to the left above the number menu forces me to use two hands if I want to operate the calculator fast.

I think it makes more sense to stick the enter button at the bottom right near the other arithmetic operations, then I can at least operate the calculator reasonably quickly with just one hand for arithmetic.