Functions

acos

Supported By

Syntax

[the] acos of factor

acos ( expression )

Factor and expression yield integers, numbers, or complexes.

Example

put acos(theCosine) into theAngle

Description

The acos function returns the inverse cosine of its argument.

If the argument is an integer or a number, a number is returned.

If the argument is a complex, a complex is returned.