EXPRESSION FORMATS

TOPIC 03 – CONVERTING FORMATS

LESSON WORK

TASK 1

Are the following expressions in INFIX, PREFIX or POSFIX? Can you figure out an easy trick to identify the format quickly?

a) A + B * C

b) * D + E F

c) G H – I +

TASK 2

Rewrite the expressions above so that they are fully bracketed expressions.

TASK 3
Convert each expression from Task 2 to the other two expression formats. Note that this is very easy once you have a fully bracketed expression.

TASK 4

Convert the following expression to prefix and to postfix.

A + (B – C) * D / (E + F)