FutureBasic Logo

<<    Index    >> FutureBasic 5

acos   function

radianAngle = acos( expr )

Returns the arccosine of expr in radians. In other words, if expr represents the cosine of some angle, then acos( expr ) returns the angle. The returned angle will be in the range of 0 to pi. acos returns a double-precision result.

See Also:
sin; cos; tan; atn; asin