c# check divide by zero

In C# if the type is float or double, divide by zero does NOT throw an exception. Dividing by zero results in Infinity (positive or negative) Or Not a Number.

using System;

namespace ConsoleApplication3

{

    class Program

    {

        static void Main(string[] args)

        {

            var k = 1f / 0f;

            Console.WriteLine(k);// Displays Infinity

            if(float.IsPositiveInfinity(k))

            {

                Console.WriteLine("Positive infinity");//code enters here

            }

            var z = 0f / 0f;

            Console.WriteLine(z);//Displays NaN

            if(float.IsNaN(z))

            {

                Console.WriteLine("Not a Number");//code enters here

            }

        }

    }

}