Acos


Function Acos( numeric expression )


Returns the arccosine (inverse cosine) of the cosine numeric expression.


Syntax a = Acos( b )


Remarks

Acos will return the inverse cosine (the angle in degrees) of cosine x where x is in the range -1 to 1.


If Acos is passed a parameter outside of the range -1 to 1, an error will occur.


See Also:

Asin Atn Cos Math Functions