acos

Inverse cosine, result in radians

English manual coverage begins with PostgreSQL 7.1. Source history and runtime observations have their own recorded version boundaries.

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group: math
group label: 数学函数和操作符
lang: en
layout: table-new
pages: functions-math.html
prose only: false

Definition PG 18

Inverse cosine, result in radians

Signatures and overloads

acos ( double precision ) → double precision → double precision

Inverse cosine, result in radians

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documentation revision

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Source references

Original manual reference

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:7d74c87ef6322ac200854233f96d95c3bf030edb33e399bda77a3aad8e4efe19

Text language: en · wiki-repair-20261023:7d74c87ef6322ac200854233f96d95c3bf030edb33e399bda77a3aad8e4efe19