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Note:
The "Xmax=" value cannot be set equal to or smaller than the value
of "Xmin". If so done, the calculator will display an error message
upon attempting to redraw the graph, and the graph will not be
displayed.
5. The next item "Xscl=" sets the frequency of the X-axis indices.
The default value is "1". If, for example, the value is set to "0.5",
then indices will be displayed on the X-axis at increments of 0.5.
Enter the required "Xscl=" value ("0.5", for example), and press
E.
6. The "Ymin=", "Ymax=", and "Yscl=" can be set, as was
described for "Xmin=", "Xmax=", and "Xscl=" above.
7. When done, press the G key to draw the graph with the
newly configured window setup.
See "10. Setting a Window" on page 92.
Z:
Displays the ZOOM menu. Within the ZOOM menu, various
preferences can be set for the graph appearance on zooming in/ out.
The menu items with each function and the sub-menu items are
described below:
A ZOOM
1 Auto
According to the WINDOW setup, the graph will be zoomed in
by adjusting the "Ymin" (the minimum Y value) and "Ymax" (the
maximum Y value) according to the "Xmin" (the minimum X value)
and "Xmax" (the maximum X value). When this item is selected, the
graph will automatically be redrawn.
Note:
The "Auto" sub-menu item is directly affected by how the WINDOW
items are set up. Refer to the W key section in this chapter to
learn how to set up the Xmin and Xmax items.
2 Box
A box area can be specified with this sub-menu tool so that the
area within the box will be displayed full screen.
To select a box area to zoom:
1. While the ZOOM menu item is selected within the ZOOM
window, press 2 to select 2 Box.
2. The graph appears on the screen. Use the cursor keys to
position the cursor at a corner of the required box area. Press
E to mark the point as an anchor.
Chapter 4: Graphing Features
75
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