Exam-style question
Try this first
What is one reason that RPN does not need brackets in sub-expressions?.
- A.The order of operations is indicated by the position of operators
- B.Every expression is evaluated from right to left
- C.All operators in RPN have the same priority
- D.Operands are automatically converted into operators
Model answer
What a good answer should say
- The order of operations is indicated by the position of operators
Explanation
Why this works
In RPN, an operator is placed after the operands it uses, so the sequence itself shows the order in which operations are carried out.
Common mistake
No common mistake is linked to this question yet.