ACOS

Returns the inverse cosine of the given number in radians.

Sample Usage

ACOS(0.5)
ACOS(C5)

Syntax

ACOS(number)

• number - The number for which the inverse cosine is to be computed.
  

Examples

ACOS(0.5) returns the inverse cosine of 0.5 in radians.
ACOS(C5) returns the inverse cosine of the number contained in C5.

Notes

• Use the DEGREES function to convert the result of ACOS into degrees. For example, DEGREES(ACOS(0.5)).
• The ACOS function returns a solution between 0 and Pi.