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 • Oct. 20, 2021

I, too, soon found myself thinking about the weird connections between triangular arrays and Fibonacci numbers whenever a maths lesson at school became dull.

From Nature • Dec. 6, 2016

Here we look at properties of the Fibonacci numbers.

From Textbooks • Mar. 30, 2016

But it’s just as much about fly-fishing, Fibonacci numbers, unreliable narration, deathbed trauma and the proper use of cake forks.

From Seattle Times • Mar. 20, 2014

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

From "The Strangers" by Margaret Peterson Haddix