What Is Infix, Prefix, and Postfix Expressions in Data Structures - Why Do We Need Them?

Learn about infix, prefix, and postfix expressions in data structures and their importance. Explore the three types of expressions: prefix (operator before operands), infix (operator between operands), and postfix (operator after operands). Understand how these expressions are used in stack data structure applications, particularly for conversions between the three formats. Gain insights into the definition of expressions as combinations of symbols, numbers, variables, operations, and grouping notations. Discover practical applications and the role of stack data structures in manipulating these expression types.