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