# \notag

Used inside AMS display environments such as align or gather to suppress the equation number/tag for the current row

https://texform.dev/latex/commands/notag

## Metadata

| Field | Value |
| --- | --- |
| Topic | [Labels and tags](https://texform.dev/latex/topics/cross-refs) |
| Packages | ams |
| Allowed mode | math |
| Tags | invisible |
| Commonality | medium |
| Kind | prefix |

## Syntax

### ams

Argument specification: ``

Used inside AMS display environments such as align or gather to suppress the equation number/tag for the current row

## Examples

```latex
\notag
```

[Open in Playground](https://play.texform.dev/?input=%5Cnotag)

## Renderer support

| Package | MathJax | KaTeX | XeTeX |
| --- | --- | --- | --- |
| ams | full | full | full |

## Usage frequency

<0.01% of formulas in the measured corpus contain this entry, rank 251 of 263 entries with frequency data.

## In TeXForm

TeXForm parses this entry as prefix syntax; the package determines its argument specification.

## Equivalent forms

```latex
\nonumber
```

exact. MathJax maps both commands to the same HandleNoTag implementation for suppressing equation numbering.

## See also

- [\\nonumber](https://texform.dev/latex/commands/nonumber)

## Test cases

### ams

| Input | Case | MathJax | KaTeX | XeTeX |
| --- | --- | --- | --- | --- |
| \notag | Positive: baseline | Pass | Pass | Pass |