When viewing a graph, press F2 to view the ZOOM menu. Then press the number associated with an option. Alternatively, highlight an option and press EXE.

1:Box defines a viewing window by selecting the corners of viewing box.

2:Factor sets the horizontal and vertical zoom factors for zooming in or out.

3:In zooms in using the factors set in 2:Factor. The default zoom factors are 2 in each direction.

4:Out in using the factors set in 2:Factor.

5:Auto automatically adjusts the y-axis settings to fit the given x-axis settings in the view window.

6:Orig returns the graph to its original size following a zoom operation.

7:Square sets the view window settings so that the axes are displayed with the same scale. Use this setting to get a true to scale graph.

8:Rnd rounds the coordinate values at the cursor location.

9:Intg adjusts the graph to result in integer coordinate values.

A:Pre resets the window to the settings previous to the last zoom operation.

B:QUICK brings up a submenu for plotting specific functions or obtaining the standard window.

1:Init resets the view window settings to their initial values.

2:Trig sets the horizontal tic marks at intervals of p/2 for viewing trigonometric functions.

3:Log X sets a convenient window for viewing y = ln(x) or y = log(x).

4:e^X sets a convenient window for viewing y = e ^x.

5:X² sets a convenient window for viewing y = x ².

6:-X² sets a convenient window for viewing y = -x ².

7:Std yields the standard viewing window.