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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 -
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 -
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
Updated on: 03-Dec-2019
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