C# 0 The Complete Reference

NumericFn

 is a 

static

class, any attempt to create an object will result in a compile-time error. It would also be an 

error to attempt to give 

NumericFn

 a non-

static

 member.

One last point: Although a 

static

 class cannot have an instance constructor, it can have a 

static

 constructor.

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9

Operator Overloading

C

# allows you to define the meaning of an operator relative to a class that you create. 

This process is called 

operator overloading.

 By overloading an operator, you expand its 

usage to your class. The effects of the operator are completely under your control and 

may differ from class to class. For example, a class that defines a linked list might use the