HP 39g+ - Manual (Page 82)

6-2 Sequence aplet
Define the
expression
2. Define the Fibonacci sequence, in which each term
(after the first two) is the sum of the preceding two
terms:
, , for .
In the Symbolic view of the Sequence aplet, highlight
the U
1 (1) field and begin defining your sequence.
1 1
Note: You can use the
, , , ,
and menu keys to assist in the entry of equations.
Specify plot
settings 3. In Plot Setup, first set the SEQPLOT option to
Stairstep . Reset the default plot settings by
clearing the Plot Setup view.
SETUP - PLOT
CLEAR
8
8
Plot the
sequence 4. Plot the Fibonacci
sequence.
5. In Plot Setup, set the SEQPLOT option to Cobweb.
SETUP - PLOT
U
1
1 = U
2
1 = U
n
U
n 1 –
U
n 2 –
+ = n 3 >