Definitions

1. verb

the inverse function of the cosine function, which returns an angle whose cosine is the given number.

“The calculator can compute the arccos of a value between -1 and 1.”

2. noun

a trigonometric function that returns the angle whose cosine is the given number.

“The arccosine function is used to find the angle of a triangle.”

3. function

a mathematical function that computes the arccosine of a given number.

“The library provides an arccos function for computing the arccosine of a value.”