acos
- arccosine function

Math functions


SYNTAX acos( x )
RETURNS NUMBER, ARRAY
FUNCTION Returns the arccosine of NUMBER or ARRAY. The acos function returns the arccosize of x in the range 0 to pi radians. If x is less than -1 or greater than 1, acos returns an indefinite.
EXAMPLE
SEE ALSO COS() function

References:

The acos function is used in the following formulas in AFL on-line library:

More information:

Updated on-line reference