Infix, Prefix, and Postfix Expressions
Explore how infix, prefix, and postfix expressions differ, focusing on operator placement and precedence. Understand why infix requires parentheses to resolve ambiguity, while prefix and postfix expressions avoid it, enhancing your ability to convert and evaluate expressions using stacks.
Infix expression
When we have an algebraic expression like A + B, we know that variable A is added to
variable B. This type of expression is called an infix expression because the operator + is between
operand A and operand B.
Ambiguous expressions
Let’s consider another infix expression, A + B * C. In the expression, ...