##### Logical Expressions

Logical expressions are similar to arithmetic expressions, but use four additional operators. The operators are:

- > - This operator evaluates to true when the expression to the left of the operator is greater than the expression to the right.

- < - This operator evaluates to true when the expression to the right of the operator is less than the expression to the left.

- = - This operator evaluates to true when the expression to the left of the operator is equal to the expression to the right.

- ! - This operator evaluation reverses the state of the expression to the right of the operator (from true to false or false to true).

Note: A value of zero means false, any other value is considered to be true.