ACOS

See also A-Z Spreadsheet Function List

Description Returns the arc cosine of a number.

Syntax ACOS(number)

number is the cosine of the angle. The cosine can range from 1 to -1.

Remarks The resulting angle is returned in radians (from 0 to p).

See Also COS and PI functions

Examples ACOS(.5) returns 1.05

         ACOS(-.2) returns 1.77