\param{double}{ start}, \param{double}{ end}}
Draws an arc of an ellipse. The current pen is used for drawing the arc and
-the current brush is used for drawing the pie. This function is currently only available for
-X window and PostScript device contexts.
+the current brush is used for drawing the pie.
{\it x} and {\it y} specify the x and y coordinates of the upper-left corner of the rectangle that contains
the ellipse.