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In this notation, operator is prefixed to operands, i.e. operator is written ahead of operands. For example, +ab. This is equivalent to its infix notation a + b. Prefix notation is also known as Polish Notation.

Prefix notation is also known as polish notation. In this notation, the operators are written before the operands, not like the infix in which the operators are in-between the operands. For example, the infix notation (5+6)*7 will be written as *+567 in prefix notation.

Polish notation was invented in 1924 by Jan Lukasiewicz, a Polish logician and philosopher, in order to simplify sentential logic. The idea is simply to have a parenthesis-free notation that makes each equation shorter and easier to parse in terms of defining the evaluation priority of the operators.

Polish Notation in the data structure is a method of expressing mathematical, logical, and algebraic equations universally. This notation is used by the compiler to evaluate mathematical equations based on their order of operations.

In mathematics and computer science, Polish notation is a way of expressing arithmetic or algebraic formulae which is unambiguous without the use of parentheses.

Polish notation Lower case letters are used as sentence letters. The capital letter N is used for negation. A is used for disjunction, K for conjunction, C for the conditional, E for the biconditional. ('A' is for alternation, another name for logical disjunction.

Polish notation (PN), also known as normal Polish notation (NPN), ?ukasiewicz notation, Warsaw notation, Polish prefix notation or simply prefix notation, is a mathematical notation in which operators precede their operands, in contrast to the more common infix notation, in which operators are placed between operands, ...