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单词 polish notation
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Polish notation
Polish notation n. [invented by the Polish logician Jan Łukasiewicz (1878–1956)] Logic and Computing a system of formula notation that avoids punctuation and brackets by writing the operators before their arguments, now also frequently used (in reverse) to represent the order in which arithmetical operations are performed in many computers and calculators; now chiefly in reverse Polish notation (see reverse adj. and adv. Compounds 2).
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Polish notation1939
1939 Jrnl. Symbolic Logic 4 168 Using the Polish notation, where C, E, A, K, R, N stand respectively for the operations of implication, equivalence, alternation, conjunction, reciprocity (contradiction), and negation, the author states eight axioms.
1966 Y. Bar-Hillel in Automatic Transl. of Lang. (NATO Summer School, Venice, 1962) 15 In Polish notation calculi you cannot introduce syntactic ambiguity..by omitting symbols, since there are no special scoping symbols to omit.
1995 Ann. Operations Res. 55 179 We show that a system can learn to evaluate arithmetic expressions in polish notation.
extracted from Polishn.1adj.
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