3.24 Function Graphing
82533F~1.DOC TI-83 international English Bob Fedorisko Revised: 10/26/05 1:20 PM Printed: 10/27/05 1:55
PM Page 24 of 28
82533F~1.DOC TI-83 international English Bob Fedorisko Revised: 10/26/05 1:20 PM Printed: 10/27/05 1:55
PM Page 24 of 28
The zoom factors, XFact and YFact, are positive numbers (not
necessarily integers) greater than or equal to 1. They define the
magnification or reduction factor used to
Zoom In or Zoom Out
around a point.
To display the
ZOOM FACTORS screen, where you can review
the current values for
XFact and YFact, select 4:SetFactors
from the ZOOM MEMORY menu. The values shown are the
defaults.
You can change XFact and YFact in either of two ways.
• 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.
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 ZoomSto and ZoomRcl
instructions from the ZOOM MEMORY menu.
Using ZOOM MEMORY (continued)
ZOOM FACTORS
Checking XFact
and YFact
Changing XFact
and YFact
Using ZOOM
MEMORY Menu
Items from the
Home Screen or
a Program
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