*Prefix* and *postfix *notation

In other languages, *(but apparently not in Alice)* there are some
unary operators that use *prefix* notation.

In Alice and other languages, there is at least one **unary** operator that uses *postfix*
notation.

This operator is the *increment operator*, which I will explain in
a future lesson.

For *prefix* notation, the operator appears before *(to the left of)* its
operand.

For *postfix* notation, the operator appears after *(to the right of)* its
operand.