acos

Returns the arccosine (in radians) of the specified number.

Syntax

acos(x)

Parameters

Parameter	Type	Description
x	number	Numeric value (the value should be from -1 to +1)

Return

Returns y such that x = cos(y).

Examples

Python

import math
x = 0.5
y = math.acos(x)
# y is 1.047197551

NexScript

x = 0.5
y = acos(x)
% y is 1.047197551