The 3-Dimensional Graphing Function enables you to draw and display a 3-dimensional graph defined by the formula z = f(x, y). You can split the display window into 3D Graph Editor window and 3D Graph window, or enlarge the 3D Graph window to see a larger graph. You can rotate the graph as you like by selecting and tapping one of the following commands from the menu. LeftRight TopBottom RightLeft BottomTop