# recursion

[ri-kur-zhuh n]

- the process of defining a function or calculating a number by the repeated application of an algorithm.

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## Origin of recursion

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

## recursion

- the act or process of returning or running back
- logic maths the application of a function to its own values to generate an infinite sequence of values. The recursion formula or clause of a definition specifies the progression from one term to the next, as given the base clause f (0) = 0, f (n + 1) = f (n) + 3 specifies the successive terms of the sequence f (n) = 3 n

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## Word Origin for recursion

C17: from Latin recursio, from recurrere recur

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

## Word Origin and History for recursion

1610s, from Latin recursionem (nominative recursio) "a running backward, return," noun of action from past participle stem of recurrere "run back" (see recur).

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Online Etymology Dictionary, © 2010 Douglas Harper