acos function

Syntax

• float acos(x)

Parameters

1. x—float

Returns

The arc cosine of x in degrees. This value is in the range [0, 180]. If x is outside [-1,1], nan is generated.

Description

The acos function calculates the arc cosine of x, i.e. the value whose cosine is x.

Related

• asin function
• atan function
• atan2 function
• cos function
• sin function
• tan function