ACOS
Name
Arccosine
Description
Returns the angle whose cosine is the specified value. The angle is in radians between 0 (zero) and π (pi).
Syntax
ACOS(value)
Remarks
The value argument is the cosine of the angle you want to return and must be between –1 and 1.
If you want to convert the result to degrees, multiply it by 180/π.
See also ACOSH, ASIN, ASINH, ATAN, ATAN2, ATANH, COS, COSH, SIN, SINH, TANH, and TAN.
Data Type
Accepts numeric data. Returns numeric data. For more information, see Data Type for Each Cell Type.
Example
ACOS(R1C2)
ACOS(B3)
ACOS(0.5)=1.0471975512