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Polish notation

Polish notation

8.6
A way of writing math expressions without parentheses where a math sign like + or − comes before the numbers
  • noun
  • /ˈpoʊlɪʃ noʊˈteɪʃən/
  • Specialized
translation icon : notación polaca
  • In Polish notation, the expression '+ 3 4' represents '3 + 4'.

Examples

  • Some calculators use Polish notation to simplify the input of complex expressions.

  • Learning Polish notation can help computer science students understand parsing algorithms.

  • I learned about Polish notation in my math class.

  • Do you understand Polish notation?

  • In Polish notation, the expression '+ 3 4' represents '3 + 4'.

  • Learning Polish notation helps students write mathematical expressions without parentheses.

  • Some programming languages use Polish notation for more straightforward expression evaluation.

Synonyms

prefix notation
vsPolish notation
  • Specialized
8.7

A way of writing math expressions where the operator comes before the numbers so no parentheses are needed

is the same method but known by a different name
Lukasiewicz notation
vsPolish notation
  • Specialized
9.9

A way to write math expressions with each operator before its numbers, without parentheses

is the same method but referred to by an alternate name

Surface Forms

Morphology

Polish + notation

The noun 'notation' makes clear this is a way of writing and 'Polish' indicates origin, so learners can guess it is a kind of notation associated with Poland, but those constituents do not convey the essential procedural property (operators placed before operands; no parentheses). Because it is a technical, eponymous term whose specific meaning requires domain knowledge, it is only partially predictable from its parts.

Etymology

Polish notation was created by a Polish mathematician named Jan Łukasiewicz, who wrote the operator before the numbers so he did not need any brackets. That's why the name now means a way to write expressions 'without parentheses'.