I've reached the point where I constantly screw up with conventional calculators I'm so used to RPN.

Alternatively, (❤️ I LISP)

My first professional job was writing FORTH for fruit machines. I'd played with it a bit before on the Jupiter Ace we had which sadly never really took off despite being more elegant than the ZX81.

They wasted ) to some shit. ( should have been push next word to X-stack and ) should have been pop and execute top of X-stack.

Then writing (+ m n) would be equal to m n + and (IF (< A B) (THEN C ELSE D))) would be identical to writing A B < IF C ELSE D THEN

But they also got rid of and avoiding CREATE’s extra writes.

RPN breaks my brain, I need to refresh myself.

Who needs PEMDAS when you have RPN :)