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10 questions from this quiz
Postfix notation
Removes need for brackets
73+7 3 +73+
The operands
LIFO (Last In First Out)
18
Post-order traversal
Jan Łukasiewicz in 1924
They need operands first
(6×2)÷3(6 \times 2) \div 3(6×2)÷3
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