Few weeks ago on HN there was a post about RPN calculator so I decided to get (both as an apps in form of Free42 and physical device) and learn one (for fun and

Few weeks ago on HN there was a post about RPN calculator so I decided to get (both as an apps in form of Free42 and physical device) and learn one (for fun and giggles). It’s one of the best gadget I got in a very long time. I absolutely love it and every single time I see a calculation problem I make a simple program for it. So for your most common use case that would be: 00 { 18-Byte Prgm } 01▸LBL "%INC" 02 X<>Y 03 ÷ 04 1 05 - 06 100 07 × 08 END If you do calculations often (or just are a geek who likes new toys) I thoroughly recommend one.