An Operator with additional information about its commutativity etc.

Operators have a number of properties:

• A symbol or name of the operator "+".
• The number of arguments NO_ARGS 0, UNARY 1 (e.g. UMINUS -x), BINARY 2 (e.g. x+y), and NARY either 3 ( a>b ? a : b) or unspecified like a list [x,y,z,w].
• The binding of the operator, LEFT 1+2+3 -> (1+2)+3 or RIGHT 1=2=3 -> 1=(2=3).
• Whether the operator is ASSOCIATIVE or COMMUTATIVE.
• The precedence of the operators + has a higher precedence than *.
• For unary operators they can either be PREFIX like -x or SUFFIX like x%.
• Comparative operators can be REFLEXIVE, SYMMETRIC, TRANSITIVE or EQUIVALENCE which has all three properties.
• A reference to a PostfixtMathCommandI object which is used to evaluate an equation containing the operator.

Various is... and get... methods are provided to query the properties of the operator.

[SerializableAttribute]
public class Operator

<SerializableAttribute> _
Public Class Operator

[SerializableAttribute]
public ref class Operator