     acos(3)                MudOS (5 Sep 1994)                 acos(3)
     NAME
          acos() - return the arccosine of a float
     SYNOPSIS
          float acos( float f );
     DESCRIPTION
          Returns the arccosine of its argument, `f', measured in
          radians.
     SEE ALSO
          asin(3), atan(3), cos(3), sin(3), tan(3)
     Page 1                                          (printed 3/16/95)
