Casio fx-9860G SD - Manual (Page 188)

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5-2-9
Controlling What Appears on a Graph Screen
k k k k k Factor Zoom
Description
With factor zoom, you can zoom in or out, centered on the current cursor position.
Set Up
1. Draw the graph.
Execution
2. Press !2(ZOOM)2(FACT) to open a pop-up window for specifying the x -axis
and y -axis zoom factor. Input the values you want and then press J.
3. Press !2(ZOOM)3(IN) to enlarge the graph, or !2(ZOOM)4(OUT) to
reduce it. The graph is enlarged or reduced centered on the current pointer location.
4. Use the cursor keys to move the cursor to the point upon which you want the zoom
operation to be centered, and then press J to zoom.