Fibonacci numbers

American  

[fee-boh-nah-chee] / ˌfi boʊˈnɑ tʃi /

plural noun

Mathematics.

1. the unending sequence 1, 1, 2, 3, 5, 8, 13, 21, 34, … where each term is defined as the sum of its two predecessors.

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Etymology

Origin of Fibonacci numbers

1890–95; after Leonardo Fibonacci, 13th-century Italian mathematician

Example Sentences

Relying on numerical sequences to plot out structure and rhythm, Gubaidulina uses devices such as Fibonacci numbers to generate a series of cryptic sketches, which eventually result in a score.

From New York Times

The formula appears in nautilus' spiral shells, but also in the arrangement of the planets in the solar system, whose distances align roughly with Fibonacci numbers' ratios.

From Salon

Just that thought made Emma want to start reciting reliable things to herself again: Fibonacci numbers.

From Literature

Fibonacci numbers and their cousin the golden ratio are a bit of a recreational math cliché.

From Scientific American

Matiyasevich showed that the Fibonacci numbers could work instead for a modified version of Robinson, Davis, and Putnam’s argument.

From Scientific American