Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book page 93

ZoomRcl
graphs the selected functions in a user-defined viewing window. The user-defined
ZoomRcl
viewing window is determined by the values stored with the
variables are updated with the user-defined values, and the graph is plotted.
ZOOM FACTORS
The zoom factors,
XFact
equal to 1. They define the magnification or reduction factor used to
point.
Checking XFact and YFact
To display the ZOOM FACTORS screen, where you can review the current values for
, select
YFact 4:SetFactors
Changing XFact and YFact
You can change
XFact
• Enter a new value. The original value is cleared automatically when you enter the first digit.
Place the cursor on the digit you want to change, and then enter a value or press { to delete
•
it.
Using ZOOM MEMORY Menu Items from the Home Screen or a Program
From the home screen or a program, you can store directly to any of the user-defined ZOOM
variables.
From a program, you can select the
menu.
and , are positive numbers (not necessarily integers) greater than or
YFact
from the
ZOOM MEMORY
and in either of two ways.
YFact
ZoomSto
ZoomSto
Zoom In
menu. The values shown are the defaults.
and instructions from the
ZoomRcl
Chapter 3: Function Graphing
instruction. The window
or around a
Zoom Out
XFact
ZOOM MEMORY
and
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