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Double.IsNegativeInfinity() Method in C#
The Double.IsNegativeInfinity() method in C# is used to return a value indicating whether the specified number evaluates to negative infinity.
Syntax
The syntax is as follows −
public static bool IsNegativeInfinity (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 = 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)); } }
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 Does the value evaluate to negative infinity? = False
Example
Let us now see another 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)); } }
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
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