When writing a recent piece about Reverse Polish Notation, or RPN, as a hook for my writing I retrieved my Sinclair Scientific ... TMS0805 calculator chip with its March 1975 date code comes ...

Write the expression one way round and it’s Polish notation ... some astounding coding from Sinclair employee Nigel Searle. The result was a single chip ∗ scientific calculator at a fraction ...

The now classic “Reverse Polish Notation” (RPN ... sales of the HP-35 Scientific Calculator exceeded 300,000 units. # Forbes ASAP named HP 35 as one of the 20 “all time products” that ...