---
title: "math:inc — Increment variable"
description: "iXML command math:inc: Increment variable."
canonical_url: "https://www.zeyos.com/ixml/ref/math-inc"
markdown_url: "https://www.zeyos.com/ai/guide/ixml/ref/math-inc.md"
section: "ixml-reference"
authority: "reference"
language: "en"
source_repository: "https://cloud.zeyos.com/__doc/ixmldoc.xml"
source_sha256: "a23f04e6a98628ca3c273c3b8dd2c33c034cfda3e0f00478d8793074fd2f70dd"
---

# math:inc — Increment variable

MATH:INC increments the value of a variable.

### Attributes
| Name | Type | Default | Description |
| ---- | ---- | ------- | ----------- |
| var | var |  | Variable name |

### Children
- (none)

### Parents
- (not restricted in the reference)

### Result
- binding: var; type: int

### Examples

```xml
<set var="number">1</set>
<math:inc var="number"/>
<output>$number</output>
<!-- 2 -->
```