Exercise 6.4
How local are local variables and formal parameters?

using System;
public class Application { 

  public delegate double NumericFunction(double d);   
  static double factor = 4.0;

  public static NumericFunction MakeMultiplier(double factor){
     return delegate(double input){return input * factor;};
  }

  public static void Main(){
    NumericFunction f = MakeMultiplier(3.0); 
    double input = 5.0;

    Console.WriteLine("factor = {0}", factor);
    Console.WriteLine("input = {0}", input);
    Console.WriteLine("f is a generated function which multiplies its input with factor");
    Console.WriteLine("f(input) = input * factor = {0}", f(input));
  }
}

factor = 4
input = 5
f is a generated function which multiplies its input with factor
f(input) = input * factor = 15