21. *PM : more examples of Polish notation, id = 8354 new !-- WP guess : more examples of Polish notation -- Status: 22. The world's first " all-electronic desktop " calculator was the British Bell Punch CRT, and introduced reverse Polish notation ( RPN ). 23. The $ 395 HP-35, along with nearly all later HP engineering calculators, used reverse Polish notation ( RPN ), also called postfix notation. 24. *PM : more examples of reverse Polish notation, id = 8257 new !-- WP guess : more examples of reverse Polish notation -- Status: 25. Hewlett-Packard would later use the stack architecture in its HP 3000 computers, and in HP calculators with Reverse Polish Notation ( RPN ). 26. The HP 38G, unlike most of HP's other calculators, uses infix notation rather than Reverse Polish Notation ( RPN ), a postfix notation. 27. The description " Polish " refers to the nationality of logician Jan Aukasiewicz, who invented ( prefix ) Polish notation in the 1920s. 28. *PM : more examples of reverse Polish notation , id = 8257 new !-- WP guess : more examples of reverse Polish notation-- Status: 29. It can be used to produce output in Reverse Polish notation ( RPN ) or as an abstract syntax tree ( AST ). 30. The successor of B3-21, the Elektronika B3-34 wasn't backward compatible with B3-21, even if it kept the reverse Polish notation ( RPN ).
