---
id: expm1
title: expm1 Function
sidebar_label: expm1
slug: /help/docs/search/search-query-language/math-expressions/expm1/
canonical: https://www.sumologic.com/help/docs/search/search-query-language/math-expressions/expm1/
---

The **expm1** function returns value of x in exp(x)-1, compensating for the roundoff in exp(x).

## Syntax

`expm1(<x>) as <field>`

## Example

```sumo
* | expm1(0.1) as v
```