ES|QL `ACOS` function

Syntax

Embedded

Parameters

number: Number between -1 and 1. If null, the function returns null.

Description

Returns the arccosine of n as an angle, expressed in radians.

Supported types

number	result
double	double
integer	double
long	double
unsigned_long	double

Example

		ROW a=.9
| EVAL acos=ACOS(a)

a:double	acos:double
.9	0.45102681179626236