Chapter 17: Activities
320
6. Press
r
. Again, use the cursor keys to compare the values of the two graphed functions,
Y3
and
Y4
.
y
t
2
t
d
2
–
x
∫
=
Problem 2
Explore the functions defined by
,
t
2
t
d
0
x
∫
, and
t
2
t
d
2
x
∫
Procedure 2
1. Press
o
. Turn off all functions and stat plots. Use a list to define these three functions
simultaneously. Store the function in
Y5
.
2. Press
q
6
to select
6:ZStandard
. The graphs are displayed as each calculation of the
integral and derivative occurs at the pixel point, which may take some time.
3. Press
r
. Notice that the functions appear identical, only shifted vertically by a constant.
4. Press
o
. Enter the numerical derivative of
Y5
in
Y6
.
