Double.IsNegativeInfinity() Method in C# Last Updated : 23 Aug, 2021 Comments Improve Suggest changes Like Article Like Report In C#, Double.IsNegativeInfinity() is a Double struct method. This method is used to check whether a specified value evaluates to negative infinity or not. In some floating point operation, it is possible to obtain a result that is negative infinity. For Example: If any negative value is divided by zero, it results in negative infinity. Syntax: public static bool IsNegativeInfinity (double d); Parameter: d: It is a double-precision floating-point number of type System.Double. Return Type: This function return a Boolean value True, if the specified value evaluates to negative infinity, otherwise return False. Example: Input : d = -5.0 / 0.0 Output : True Input : d = -1.5935e250 * 7.948e110 Output : True Code: To demonstrate the Double.IsNegativeInfinity(Double) Method C# // C# program to illustrate the // Double.IsNegativeInfinity() Method using System; class GFG { // Main method static public void Main() { // Dividing a negative number by zero // results in Negative infinity. // Dividing a number directly by 0 // produces an error // So 0 is stored in a variable first double zero = 0.0; double value = -5; double result = value / zero; // Printing result Console.WriteLine(result); // Check result using IsNegativeInfinity() Method Console.WriteLine(Double.IsNegativeInfinity(result)); // Result of floating point operation // that is less than Double.MinValue // is Negative Infinity result = Double.MinValue * 7.948e110; // Printing result Console.WriteLine(result); // Check result using IsNegativeInfinity() Method Console.WriteLine(Double.IsNegativeInfinity(result)); } } Output: -Infinity True -Infinity True Note: The result of any floating point operation is less than Double.MinValue (i.e -1.7976931348623157E+308 ) is considered as Negative Infinity.Floating-point operation return Infinity (Positive Infinity) or -Infinity (Negative Infinity) to indicate an overflow condition. Comment More infoAdvertise with us Next Article Double.IsNegativeInfinity() Method in C# I ihritik Follow Improve Article Tags : C# CSharp-method CSharp-Double-Struct Similar Reads Double.IsPositiveInfinity() Method in C# In C#, Double.IsPositiveInfinity() is a Double struct method. This method is used to check whether a specified value evaluates to positive infinity or not. In some floating point operation, it is possible to obtain a result that is positive infinity. For Example: If any positive value is divided by 2 min read Double.IsInfinity() Method in C# In C#, Double.IsInfinity() is a Double struct method. This method is used to check whether a specified value evaluates to either positive infinity or negative infinity or not. While performing some mathematical operations, it is possible to obtain a result that is either positive infinity or negativ 2 min read Double.IsNaN() Method in C# In C#, Double.IsNaN() is a Double struct method. This method is used to check whether the specified value is not a number (NaN). Syntax: public static bool IsNaN (double d); Parameter: d: It is a double-precision floating-point number of type System.Double Return Type: This function returns a Boolea 2 min read Single.IsNegativeInfinity() Method in C# with Examples In C#, Single.IsNegativeInfinity(Single) is a Single struct method. This method is used to check whether a specified floating-point value evaluates to negative infinity or not. In some floating point operation, it is possible to obtain a result that is negative infinity. For Example: If any negative 2 min read Single.IsPositiveInfinity() Method in C# with Examples In C#, Single.IsPositiveInfinity(Single) is a Single struct method. This method is used to check whether a specified floating-point value evaluates to positive infinity or not. In some floating point operation, it is possible to obtain a result that is positive infinity. For Example: If any positive 2 min read Like