Parenthesis is never required in postfix or prefix expressions, why?
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Answer / Anil Kumar Gupta
In postfix and prefix notations, operators are placed after (in postfix) or before (in prefix) their operands. This eliminates the need for parentheses since the order of operations is already defined. In postfix notation, operators only require operands on either side, while in prefix notation, operators are written before all their operands.
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