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elasticsearch/docs/reference/query-languages/esql/_snippets/functions/parameters/acos.md

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Split ESQL functions/operators docs files (#123904) * Port from asciidocalypse * Fix links for operator lists * Remove unused image files after moving/editing them * Fix lists links * Fix like/rlike links * Fix remaining bad references to /elasticsearch/docs * Fix logstash and beats references * Fix logstash and beats references * Fix image links
2025-03-04 21:59:31 +08:00
% This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it.
**Parameters**
`number`
: Number between -1 and 1. If `null`, the function returns `null`.