184 Chapter 9: Function Graphing
7309ENG.DOC CH 9 Function Graphing, English Julie Hewlett Revised: 07/29/98 12:14 PM Printed: 05/19/99
9:01 AM Page 184 of 24
2. Select the Zoom In operation
for the function graph.
(2
3. Move the cursor to the
point that you want as the
center of the new viewing
window.
"!$#
4. Replot the graph.
b
Zoom Out works exactly the same way as Zoom In. The
calculator zooms out automatically around the center point.
ZStandard ZStandard (
6 6
ZStandard is one of the more popular zoom commands because
many function graphs look good when graphed according to
the standard (default) WINDOW values: Xmin=M10, Xmax=10,
Xscl=1, Ymin=-M10, Ymax=10, Yscl=1.
If you select the ZStandard operation, either from the Graph
screen or another screen, all selected functions are
immediately replotted according to these standard WINDOW
values.
ZInteger ZInteger (
0 0
ZInteger requires you first to select a new center point. The
calculator then replots the graph immediately using the
adjusted WINDOW values which set @X and @Y to 1, and Xscl and
Yscl to 10.
Select the center point (as you would do for ZoomIn and
ZoomOut) by moving the cursor with the cursor keys, and then
pressing b. Press ) to view the new coordinate
values.
You want to
zoom in on
this side of the
graph.
The cursor point
becomes the center
of the new window.