Operator Type:
Operator Scope of Action:
Operator Purpose:
Operator First Added:
Operator Altered:
Operator [other Operator type actions]
Item [operators of similar scope]
Mathematical [other Mathematical operators]
Baseline
The subtraction operator, - (minus sign character), returns the remainder of the argument before it when the argument after it is subtracted.
$MyNumber = 3-4;
When mixing data types (a '-' might be intended as a hyphen) or if working with lists—i.e. List & Set types—see notes under concatenation.