Texas Instruments -84 Plus, Manual Book

Page: 473 / 696

Chapter 17: Activities 470
Setting the Viewing Window Setting the Viewing Window Setting the Viewing Window Setting the Viewing Window
You also can use the graphing features of the TI-84 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.
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.
1. Press
p
to display the window
editor, where you can view and edit the
values of the window variables.