
Getting started with the Sequence app
The following example explores the well-known Fibonacci sequence, where each term, from the third term
on, is the sum of the preceding two terms. In this example, we specify three sequence elds: the rst term,
the second term and a rule for generating all subsequent terms.
Opening the Sequence app
▲
Press , and then select Sequence.
The app opens in Symbolic view.
Dening the expression
To dene the following Fibonacci sequence:
U
1
= 1, U
2
= 1, U
n
= U
n – 1
+ U
n – 2
for n > 2
Getting started with the Sequence app 315
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