using System;
using System.Numerics;

public class Example
{
    public static void Main()
    {
        // This example demonstrates the behaviour of IsNormal and IsSubnormal properties using the double type
        double a = double.NaN;
        double b = double.PositiveInfinity;
        double c = double.NegativeInfinity;
        double d = 0.0;
        double e = 1.0;
        double f = 4.94065645841247E-324;

        Console.WriteLine("Result of IsNormal on double.Nan                            : {0}", Double.IsNormal(a));
        Console.WriteLine("Result of IsNormal on double.PositiveInfinity               : {0}", Double.IsNormal(b));
        Console.WriteLine("Result of IsNormal on double.NegativeInfinity               : {0}", Double.IsNormal(c));
        Console.WriteLine("Result of IsNormal on (double d = 0.0)                      : {0}", Double.IsNormal(d));
        Console.WriteLine("Result of IsNormal on (double e = 1.0)                      : {0}", Double.IsNormal(e));
        Console.WriteLine("Result of IsNormal on (double f = 4.94065645841247E-324)    : {0}", Double.IsNormal(f));

        Console.WriteLine();

        Console.WriteLine("Result of IsSubnormal on Double.Nan                         : {0}", Double.IsSubnormal(a));
        Console.WriteLine("Result of IsSubnormal on Double.PositiveInfinity            : {0}", Double.IsSubnormal(b));
        Console.WriteLine("Result of IsSubnormal on Double.NegativeInfinity            : {0}", Double.IsSubnormal(c));
        Console.WriteLine("Result of IsSubnormal on (double d = 0.0)                   : {0}", Double.IsSubnormal(d));
        Console.WriteLine("Result of IsSubnormal on (double e = 1.0)                   : {0}", Double.IsSubnormal(e));
        Console.WriteLine("Result of IsSubnormal on (double f = 4.94065645841247E-324) : {0}", Double.IsSubnormal(f));

        // The example displays the following output:
        //       Result of IsNormal on double.Nan                             : False
        //       Result of IsNormal on double.PositiveInfinity                : False
        //       Result of IsNormal on double.NegativeInfinity                : False
        //       Result of IsNormal on (double d = 0.0)                       : False
        //       Result of IsNormal on (double e = 1.0)                       : True
        //       Result of IsNormal on (double f = 4.94065645841247E-324)     : False

        //       Result of IsSubnormal on Double.Nan                          : False
        //       Result of IsSubnormal on Double.PositiveInfinity             : False
        //       Result of IsSubnormal on Double.NegativeInfinity             : False
        //       Result of IsSubnormal on (double d = 0.0)                    : False
        //       Result of IsSubnormal on (double e = 1.0)                    : False
        //       Result of IsSubnormal on (double f = 4.94065645841247E-324)  : True
    }
}