Calculator User Manual

TI-83 Plus Activities 551
7. Press
†
to display the other maximum.
The value of
Y1
at
X
=
3.68
in full precision is
410.264064
, at
X
=
3.69
is
410.262318
and at
X
=
3.7
is
410.256
.
The maximum volume of the box would occur at
3.68
if you could measure and cut the paper at
.01-centimeter increments.
Box with Lid
Setting the Viewing Window
You also can use the graphing features of the TI-83 Plus to find the
maximum value of a previously defined function. When the graph is
activated, the viewing window defines the displayed portion of the
coordinate plane. The values of the window variables determine the size
of the viewing window.
1. Press
p
to display the window editor,
where you can view and edit the values of the
window variables.