noun
Polish notation
A mathematical notation for logic and arithmetic where operators precede their operands. Used in computer science, especially in parsing and expression evaluation.
ポーランド記法では、演算子をオペランドの前に置く。
In Polish notation, operators are placed before their operands.
Reverse Polish notation (RPN) places operators after operands, unlike standard Polish notation.
From English 'Polish notation', named after the Polish logician Jan Łukasiewicz.