Logical

Logical commands determine whether certain expressions are logically true (returning a 1) or false (returning a 0).

Command	Description
Alpha()	Returns a logical true if an expression evaluates to non-numeric.
And, Or operators	Allows you to return a true or false value based on the Boolean And, Or combination of two expressions.
Assigned()	Determines whether a specified variable has been assigned a value.
BitAnd(), BitOr(), BitXor(), BitNot()	Returns the bit-wise And, Or, Xor, and Not of individual bits in an integer value.
Matches operator	Compares a string value to a pattern. Evaluates to 1 (true) or 0 (false).
Not()	Inverts the logical value of an expression.
Num()	Returns true if an expression evaluates to numeric.