Unary Expressions

Last modified: April 20, 2023

1 Introduction

An unary minus operator is used to convert a number from negative to positive or vice versa.

2 Example

The example below represents the negative value of ‘8’.

-8

When used with a variable that already has a negative value the result is positive.

For example, if $myVariable has the integer value “-7”:

-$myVariable

The output is:

7