# Inf

## Purpose

Infinity.

## Synopsis

    Inf

## Description

`Inf` is the IEEE arithmetic representation for positive infinity. Infinity results from operations like division by zero and overflow, which lead to results too large to represent as conventional floating-point values.

## Examples

`1/0`,`1.e1000`,`2^1000`,`` and `exp(1000)` all produce `Inf`.

`log(0)` produces `-Inf`.

`Inf-Inf` and `Inf/Inf` both produce `NaN`, Not-a-Number.

## See Also

    dbstop, finite, isinf, isnan, NaN

(c) Copyright 1994 by The MathWorks, Inc.