TI -82 Manual Book page 79

Zoom In, Zoom Out
magnifies the graph around the cursor location.
Zoom In
displays a greater portion of the graph, centered on the cursor location, to
provide a more global view. The
extent of the zoom.
1. After checking or changing
from the
Notice the different cursor. It indicates that you are using a
instruction.
2. Move the cursor to the point that you want as the center of the new
viewing
The TI.82 adjusts the viewing
the WINDOW
the cursor location.
3. To zoom in on the graph again:
To zoom in at the same point, press Í.
¦
¦
To zoom in at a new point, move the cursor to the point that you
want as the center of the new viewing
Í.
Zoom Out
The procedure for
Leaving Zoom In or Zoom Out
To leave Zoom In
Select another screen by pressing the appropriate key, such as r or
¦
s.
Press y ã
¦
menu.
ZOOM
, then press Í.
WINDOW
variables, and replots the selected functions, centered on
Zoom Out is the same as for
or Zoom Out
ä to return to the Home screen.
QUIT
and
XFact YFact
XFact and YFact (page 3.20), select
WINDOW by XFact
WINDOW
Zoom In
:
Function Graphing 3-17
Zoom Out
settings determine the
ZOOM
and YFact , updates
and then press
.
Zoom In