**Zoom Menu**

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:Initresets the view window settings to their initial values.2:Trigsets the horizontal tic marks at intervals of p/2 for viewing trigonometric functions.3:Log Xsets a convenient window for viewingy= ln(x) ory= log(x).4:e^Xsets a convenient window for viewingy=e^{x}.5:Xsets a convenient window for viewing^{2}y=x^{2}.6:-Xsets a convenient window for viewing^{2}y= -x^{2}.7:Stdyields the standard viewing window.