Infix, Prefix, and Postfix are the there ways of writing the expressions.

S.no Infix notation Prefix notation Postfix notation
1. Infix notation is written as X + Y.The usual method of writing any mathematical expression is Infix notation. In this notation, the operators are written between their operands. Prefix notation is written as +XY.The operator comes before the operands. The evaluation of the prefix notation is from Left to Right Postfix notation is written as XY+.in this notation the operator enters after the operand. The review of the prefix notation is from Left to Right.

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