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Polish notation

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Polish notation
A method for expressing a sequence of calculations developed by the Polish logician Jan Lukasiewicz in 1929. For example, A(B+C) would be expressed as
* A + B C. In reverse Polish notation, it would be A B C + *.
Polish notation [′pō·lish nō′tā·shən]
(computer science)
A notation system for digital-computer or calculator logic in which there are no parenthetical expressions and each operator is a binary or unary operator in the sense that it operates on not more than two operands. Also known as Lukasiewicz notation; parenthesis-free notation.
The version of this notation in which operators precede the operands with which they are associated. Also known as prefix notation.
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The other features are power off memory protection, with prompts and menus, 15 digits internal precision, with 13maximum level of pending operation, and Reverse Polish Notation (RPN) and algebraic entry system.
The Defining Features and Importance of Scientific Calculators by Dave Text / Travel, recreation and leisure community
Feature highlights include: Two-line display allowing users to view up to 12 digits and scroll through variables, real-text labels, menus and prompts; High-speed, low-power CPU delivering fastresults with up to 15-digit internal precision while extending battery life; Choice of time-saving Reverse Polish Notation (RPN), hierarchical or traditional chain algebraic data entry.
HP launches sleek new business calculator by Real Estate Weekly
com/calculators, Hardware, $400 As a scientific programmable calculator, users can switch between Reverse Polish Notation (RPN) and algebraic entry-system logic at any time.
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