THE EXPLAINER
Jan 04, 2022
3 minutes
by MARCUS DU SAUTOY
WHAT IS THE FIBONACCI SEQUENCE?
1, 1, 2, 3, 5, 8, 13, 21… The Fibonacci sequence. Every number in the sequence is generated by adding together the two previous numbers. So the next Fibonacci number is 13 + 21 = 34. They are the simplest example of a recursive sequence where each number is generated by an equation in the previous numbers in the sequence. Hidden inside this sequence is another important number in mathematics: the golden ratio. Denoted by the Greek letter phi, it is
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