float and double type defines constant values to represent the positive infinit, negative infinit and NaN(Not a Number).
| Special value | Double constant | Float constant |
|---|---|---|
| NaN | double.NaN | float.NaN |
| positive infinit | double.PositiveInfinity | float.PositiveInfinity |
| negetive infinit | double.NegativeInfinity | float.NegativeInfinity |
| -0 | -0.0 | -0.0f |
Dividing a nonzero number by zero results in an infinite value.
For example:
using System;
class Program
{
static void Main(string[] args)
{
Console.WriteLine(1.0 / 0.0); // Infinity
Console.WriteLine(-1.0 / 0.0); // -Infinity
Console.WriteLine(1.0 / -0.0); // -Infinity
Console.WriteLine(-1.0 / -0.0); // Infinity
}
}
The output:
Infinity
-Infinity
-Infinity
InfinityDividing zero by zero, or subtracting infinity from infinity, results in a NaN.
For example:
using System;
class Program
{
static void Main(string[] args)
{
Console.WriteLine ( 0.0 / 0.0); // NaN
Console.WriteLine ((1.0 / 0.0) - (1.0 / 0.0)); // NaN
}
}
The output:
NaN
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