# Fibonacci Numbers and the Golden Ratio

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The sequence of Fibonacci numbers is given by 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, …, in which each number is the sum of the two preceding numbers. This can be expressed as with and .

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Contributed by: S. M. Blinder (March 2011)

Open content licensed under CC BY-NC-SA

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S. M. Blinder, *Guide to Essential Math*, Amsterdam: Elsevier, 2008 pp. 7–8.

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