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FCIRCL_ARC()                                                        G_EXAM07
   Draws a circular arc with a given center and radius.

   Syntax
         FCIRCL_ARC(nX,nY,nRadius,nStartAngle,nAngleWidth,nColor)

   Arguments
         nX             Absolute horizontal screen position.
         nY             Absolute vertical screen position.
         nRadius        Radius.
         nStartAngle    Starting angle in tenths of degrees. (0-3600)
         nAngleWidth    Angle width in tenths of degrees. (0-3600)
         nColor         Palette color number. (0-15)

   Returns
         None

   Note: ATX() and ATY() can be used to position the circular arc.

   Description
         FCIRCL_ARC() draws a circular arc centered at nX,nY. It adjusts
         for the screen's aspect ratio to draw a figure that appears
         circular. The radius is assumed positive and along the X-axis.

         nStartAngle defines the start of the arc and nAngleWidth sets the
         length of the arc. Both values specify angles using tenths of a
         degree, ranging from 0 to 3600 rotating in a counter-clockwise
         direction.

         FLP_CAP can be used in place of nX,nY to draw the circle at the
         current active point.