Hoggatt sees Fibonacci everywhere. “The piano octave,” he notes with satisfaction, “has eight white keys—five black keys and 13 keys altogether,” all Fibonacci numbers. “I always use ...

Fibonacci numbers “always make mathematicians happy,” said Tara Holm, a mathematician at Cornell University. Their appearance in McDuff and Schlenk’s work, she added, was “some indication that there’s ...

Well-known formulas for sums of alternately indexed Fibonacci numbers motivate and become accessories to our constructions and proofs. For counting and constructing the symmetric nets, we first use a ...

Though the Fibonacci sequence shows up everywhere in nature, these young mathematicians were surprised to find it in the answer to a variation of the pick-up sticks problem⁠—a nearly two ...

Fibonacci created Fibonacci numbers in his 1202 book, Liber Abaci (The Book of Calculations), to calculate the problem of the then ever growing rabbit population. His hypothesis was that for every ...

Mathematicians and fans of unusual natural occurrences can celebrate 11/23 as Fibonacci Day, based on the first four numbers of his historic sequence November 23 might not sound like a day to ...