No Ambiguity
Because operators always come immediately after their required operands, there is no need for PEMDAS/BODMAS rules or parentheses. The order of characters strictly defines the order of evaluation.
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Postfix (Reverse Polish Notation) places operators after their operands. For example, `A + B` becomes `A B +`. It completely eliminates the need for parentheses.
Because operators always come immediately after their required operands, there is no need for PEMDAS/BODMAS rules or parentheses. The order of characters strictly defines the order of evaluation.
Computers love Postfix. A simple Left-to-Right scan is all it takes. Push operands to a Stack. When you see an operator, pop two operands, calculate, and push the result back.
Many stack-based virtual machines (like the Java Virtual Machine or Python bytecode) execute math operations using a form of Postfix under the hood.