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* Break out 'Limitations' into separate page * Add REST API docs * Restructure commands, functions, and operators refs * Add placeholder for getting started guide * Group 'Syntax', 'Metafields', and 'MV fields' under 'Language' * Add placeholder for Kibana page * Add link from landing page * Apply uniform formatting to ACOS, CASE, and DATE_PARSE function refs * Reword default LIMIT * Add support for COUNT(*) * Move 'Commands' and 'Functions and operators' to individual pages --------- Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>
33 lines
595 B
Text
33 lines
595 B
Text
[discrete]
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[[esql-acos]]
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=== `ACOS`
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*Syntax*
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[.text-center]
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image::esql/functions/signature/acos.svg[Embedded,opts=inline]
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*Parameters*
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`n`::
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Numeric expression. If `null`, the function returns `null`.
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*Description*
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Returns the {wikipedia}/Inverse_trigonometric_functions[arccosine] of `n` as an
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angle, expressed in radians.
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*Supported types*
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include::types/acos.asciidoc[]
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*Example*
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[source.merge.styled,esql]
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----
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include::{esql-specs}/floats.csv-spec[tag=acos]
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----
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[%header.monospaced.styled,format=dsv,separator=|]
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|===
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include::{esql-specs}/floats.csv-spec[tag=acos-result]
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|===
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