Texas Instruments TI-85 User Manual
Page 6
B-6
TI-85/TI-86 Graphing Calculators
Copyright © Houghton Mifflin Company. All rights reserved.
Remove the lower menu with
EXIT
, and press
F3
(
ZOOM
)
MORE
F4
(
ZDECM
) .
Notice that the graphics screen is blank.
TI-85
Press
EXIT
F2
(
RANGE
) to see the view set
by
ZDECM
.
TI-86
Press
EXIT
F2
(
WIND
) to see the view set
by
ZDECM
.
¥ Both
xMin
and
xMax
are the settings of the left and right edges of the viewing screen,
and
yMin
and
yMax
are the settings for the lower and upper edges of the viewing
screen.
xScl
and
yScl
set the spacing between the tick marks on the x- and y-axes.
The view you see is
–
6.3
£ x £ 6.3,
–
3.1
£ y £ 3.1.
Follow the procedures shown in either 1.1.3 or 1.1.4 to draw a graph with your calculator.
Whenever you draw a graph, you have the option of manually changing the view or having
the calculator automatically find a view of the graph.
1.1.3 MANUALLY CHANGING THE VIEW OF A GRAPH
If you do not have a
good view of the graph or if you do not see the graph, change the view with one of t h e
ZOOM
options or manually set the view. (We later discuss the
ZOOM
options.)
TI 85
Press
GRAPH
F2
(
RANGE
) .
Set
xMin
to
0
,
xMax
to
10
, leave
xScl
at
1,
set
yMin
to
900,
yMax
to
2000,
and
yScl
to
50
.
TI 86
Press
GRAPH
F2
(
WIND
) .
Set
xMin
to
0
,
xMax
to
10
, leave
xScl
at
1,
set
yMin
to
900,
yMax
to
2000,
and
yScl
to
50
.
Below
yScl
is a setting called
xRes
. For all appli-
cations in this Guide, have
xRes
set to 1.