User's Manual

Function Graphing 3-23
8303FUNC.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:16 PM Printed: 02/19/01 1:35
PM Page 23 of 28
To display the
ZOOM MEMORY
menu, press
q ~
.
ZOOM MEMORY
1:ZPrevious
Uses the previous viewing window.
2:ZoomSto
Stores the user-defined window.
3:ZoomRcl
Recalls the user-defined window.
4:SetFactors
...
Changes
Zoom In
and
Zoom Out
factors.
ZPrevious
replots the graph using the window variables of
the graph that was displayed before you executed the last
ZOOM
instruction.
ZoomSto
immediately stores the current viewing window.
The graph is displayed, and the values of the current
window variables are stored in the user-defined
ZOOM
variables
ZXmin
,
ZXmax
,
ZXscl
,
ZYmin
,
ZYmax
,
ZYscl
, and
ZXres
.
These variables apply to all graphing modes. For example,
changing the value of
ZXmin
in
Func
mode also changes it
in
Par
mode.
ZoomRcl
graphs the selected functions in a user-defined
viewing window. The user-defined viewing window is
determined by the values stored with the
ZoomSto
instruction. The window variables are updated with the
user-defined values, and the graph is plotted.
Using ZOOM MEMORY
ZOOM MEMORY
Menu
ZPrevious
ZoomSto
ZoomRcl