Query_Lang-SystemFunctions_Trigonometry_ACOSACOS_AD

Created: сентября 05, 2015 | Updated: августа 13, 2021 | Applies to versions: 15.1, 16.0, 16.1, 17.0, 17.1, 18.0, 18.1, 19.0, 19.1, 20.0, 20.1 and 20.2

Parent page: System Query Functions - Trigonometry Functions

Summary

Returns a (real) number whose value is equal to the angle of the inverse cosine of the number specified by the parameter's numeric value; that angle is in units of radians (and not degrees).

Syntax

ACOS(X : Number / Numeric_String) : Number

Example Usage

ACOS(0)
Returns 1.5708.

ACOS(0.5)
Returns 1.0472.

ACOS(1)
Returns 0.