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elasticsearch/docs/reference/query-languages/esql/_snippets/functions/tau.md
Colleen McGinnis b7e3a1e14b
[docs] Migrate docs from AsciiDoc to Markdown (#123507) 
* delete asciidoc files

* add migrated files

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* Disable docs tests

* Clarify release notes page titles

* Revert "Clarify release notes page titles"

This reverts commit 8be688648d.

* Comment out edternal URI images

* Clean up query languages landing pages, link to conceptual docs

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* Fixes inference processor nesting.

---------

Co-authored-by: Liam Thompson <32779855+leemthompo@users.noreply.github.com>
Co-authored-by: Liam Thompson <leemthompo@gmail.com>
Co-authored-by: Martijn Laarman <Mpdreamz@gmail.com>
Co-authored-by: István Zoltán Szabó <szabosteve@gmail.com>
2025-02-27 17:56:14 +01:00

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TAU [esql-tau]

Syntax

:::{image} ../../../../../images/tau.svg :alt: Embedded :class: text-center :::

Parameters

Description

Returns the ratio of a circle’s circumference to its radius.

Supported types

result
double

Example

ROW TAU()
TAU():double
6.283185307179586