Double.IsNaN() Method in C#


The Double.IsNaN() method in C# is used to return a value that indicates whether the specified value is not a number (NaN).

Syntax

The syntax is as follows −

public static bool IsNaN (double val);

Above, val is the double-precision floating-point number.

Example

Let us now see an example −

 Live Demo

using System;
public class Demo {
   public static void Main(){
      double d = 1.0/0.0;
      Console.WriteLine("Double Value = "+d);
      Console.WriteLine("HashCode of Double Value = "+d.GetHashCode());
      TypeCode type = d.GetTypeCode();
      Console.WriteLine("TypeCode of Double Value = "+type);
      Console.WriteLine("Positive Infinity? = "+Double.IsInfinity(d));
      Console.WriteLine("Check whether the specified value is NaN? = "+Double.IsNaN(d));
   }
}

Output

This will produce the following output −

Double Value = ∞
HashCode of Double Value = 2146435072
TypeCode of Double Value = Double
Positive Infinity? = True
Check whether the specified value is NaN? = False

Example

Let us now see another example −

 Live Demo

using System;
public class Demo {
   public static void Main(){
      double d = 0.0/0;
      Console.WriteLine("Double Value = "+d);
      Console.WriteLine("HashCode of Double Value = "+d.GetHashCode());
      TypeCode type = d.GetTypeCode();
      Console.WriteLine("TypeCode of Double Value = "+type);
      Console.WriteLine("Positive Infinity? = "+Double.IsInfinity(d));
      Console.WriteLine("Check whether the specified value is NaN? = "+Double.IsNaN(d));
   }
}

Output

This will produce the following output −

Double Value = NaN
HashCode of Double Value = -524288
TypeCode of Double Value = Double
Positive Infinity? = False
Check whether the specified value is NaN? = True
raja
Published on 03-Dec-2019 06:37:55
Advertisements