Acronym for Reverse Polish Notation.

The idea of putting your operators after your arguments. Arguments are "pushed" onto a stack, and an operator pop's off the required arguments, computes the result and pushes it back onto the stack. For example:

3 1 2 + *

leaves 6 on the stack. Note that RPN doesn't require any brackets.

Compare InfixNotation?, PrefixNotation

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