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ACOS function

Description

Arccosine function. ACOS(x) returns the arccosine of x. The arccosine function is the inverse function of the cosine function and calculates the angle for a given cosine. X must be in the [-1..1] range. The result is an angle expressed in radians. To convert from radians to degrees, use the DEGREES function.

Examples

ACOS(0) equals 1.5707963 (=PI/2)

ACOS(1) equals 0

Calculator

ACOS()

Graph

ACOS function
Function: ACOS()
  X-axis Y-axis
Minimum:
Maximum:
Help  

Relation with ASIN and ATAN functions

ACOS function definition and online calculator

Related functions

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