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Chapter 6: Advanced Graphing Features — Advanced Keyboard
phase-based (uv, uw, or vw)
The u
n
values will be plotted against the v
n
values (uv).
(n
–
1
)-based (Web)
The u
n
values will be plotted against the u
n-1
value.
Note: • When u
n–2
is incorporated in to the equation, the
u(nMin)
requires two values: the minimum, and the second smallest. For
example, you will need {0, 1} in the
u(nMin)
entry row if
u(n
–
1)
+
u(n
–
2)
is entered as the equation.
• When Web is selected, n – 2 cannot be referred to. n
also
cannot be directly referred to; entering u(n–1) + n will result in
an error.
Before entering graphing sequences, the calculator’s graphing
coordinates will need to be set up:
1. Press @ ;. The SETUP menu appears.
2. Press E to select E COORD, then press 4 to select 4
Seq.
3. Press C to exit the SETUP menu.
Example 1:
n
-based Graphing (Time)
•Draw a sequential graph of u
n
= 2 × 2
n–1
.
First, make sure that the graph coordinate mode is set to
sequential (see above.)
1. Press @ f to open the FORMAT menu. The FORMAT
menu allows user to change the graph configurations.
2. When the menu appears, select the item G TYPE.
3. Press 2 to select 2
Time.