Double.IsPositiveInfinity() Method in C#


The Double.IsPositiveInfinity() method in C# is used to return a value indicating whether the specified number evaluates to positive infinity.

Syntax

The syntax is as follows -

public static bool IsPositiveInfinity (double val);

Above, val is a 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));
      Console.WriteLine("Does the value evaluate to negative infinity? = "+Double.IsNegativeInfinity(d));
      Console.WriteLine("Does the value evaluate to positive infinity? = "+Double.IsPositiveInfinity(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
Does the value evaluate to negative infinity? = False
Does the value evaluate to positive infinity? = True

Example

Let us now see another example -

 Live Demo

using System;
public class Demo {
   public static void Main() {
      double d = -50.0/0.0;
      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));
      Console.WriteLine("Does the value evaluate to negative infinity? = "+Double.IsNegativeInfinity(d));
      Console.WriteLine("Does the value evaluate to positive infinity? = "+Double.IsPositiveInfinity(d));
   }
}

Output

This will produce the following output -

Double Value = -∞
HashCode of Double Value = -1048576
TypeCode of Double Value = Double
Positive Infinity? = True
Check whether the specified value is NaN? = False
Does the value evaluate to negative infinity? = True
Does the value evaluate to positive infinity? = False
raja
Published on 03-Dec-2019 12:55:29
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