# Double.NegativeInfinity Field

[ This article is for Windows Phone 8 developers. If youâ€™re developing for Windows 10, see the latest documentation. ]

Represents negative infinity. This field is constant.

**Namespace:** System**Assembly:** mscorlib (in mscorlib.dll)

## Syntax

```
Public Const NegativeInfinity As Double
```

```
public const double NegativeInfinity
```

## Remarks

The value of this constant is the result of dividing a negative number by zero.

This constant is returned when the result of an operation is less than MinValue.

Use IsNegativeInfinity to determine whether a value evaluates to negative infinity. It is not possible to determine whether a value evaluates to negative infinity by comparing it to another value equal to NegativeInfinity.

## Examples

The following example illustrates the use of NegativeInfinity:

```
' This will equal Infinity.
outputBlock.Text &= "10.0 minus NegativeInfinity equals " + (10 - Double.NegativeInfinity).ToString() + "." & vbCrLf
```

```
// This will equal Infinity.
outputBlock.Text += String.Format("10.0 minus NegativeInfinity equals {0}.", (10.0 - Double.NegativeInfinity).ToString()) + "\n";
```

## Version Information

#### Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

## Platforms

Windows Phone