In C#, Single.IsNaN(Single) is a Single struct method. This method is used to check whether the specified floating-point value is not a number (NaN).
CSHARP
Syntax: public static bool IsNaN (float f); Parameter: f: It is a single-precision floating-point number of type System.Single.Return Type: This function returns a boolean value i.e. True, if specified value is not a number(NaN), otherwise returns False. Example:
// C# program to demonstrate
// Single.IsNaN(Single) method
using System;
class GFG {
// Main Method
public static void Main(String[] args)
{
// first example
float f1 = 1.0f / 0.0f;
bool res = Single.IsNaN(f1);
// printing the output
if (res)
Console.WriteLine(f1 + " is NaN");
else
Console.WriteLine(f1 + " is not NaN");
// second example
// it will give result
// NaN
float f2 = 0.0f / 0.0f;
bool res1 = Single.IsNaN(f2);
// printing the output
if (res1)
Console.WriteLine(f2 + " is NaN");
else
Console.WriteLine(f2 + " is not NaN");
}
}
Output:
Note:
Infinity is not NaN NaN is NaN
- This method returns false if a Single value is either PositiveInfinity or NegativeInfinity.
- Floating point operation returns a NaN to show that the result of the operation is undefined.
