Double.IsPositiveInfinity() Method in C#

CsharpServer Side ProgrammingProgramming

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
Published on 03-Dec-2019 17:25:29