Loading ...
Loading ...
Loading ...
TI-83 Plus Split Screen 247
3. Press
o
to display the
Y=
editor for
Par
graphing mode. Press
™
„
¤
Í
to
store
cos(T)
to
X1T
. Press
˜
„
¤
Í
to store
sin(T)
to
Y1T
.
4. Press
p
to display the window editor.
Enter these values for the window variables.
Tmin=0 Xmin=
L
2.3 Ymin=
L
2.5
Tmax=360 Xmax=2.3 Ymax=2.5
Tstep=15 Xscl=1 Yscl=1
5. Press
r
. On the left, the unit circle is
graphed parametrically in
Degree
mode and the
trace cursor is activated. When
T=0
(from the
graph trace coordinates), you can see from the
table on the right that the value of
X1T
(
cos(T)
) is
1
and
Y1T
(
sin(T)
) is
0
. Press
~
to move the
cursor to the next 15
°
angle increment. As you
trace around the circle in steps of 15
°
, an
approximation of the standard value for each
angle is highlighted in the table.
Loading ...
Loading ...
Loading ...