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File:New Animation Sieve of Eratosthenes.gif

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New_Animation_Sieve_of_Eratosthenes.gif (554 × 445 pixels, file size: 43 KB, MIME type: image/gif, looped, 159 frames, 36 s)

Summary

Description
English: Animation that visualizes the "Sieve of Eratosthenes" algorithm.

The Sieve of Eratosthenes is an method for efficiently finding all prime numbers up to a number, 120 in this case, by eliminating all multiples of successive primes. It uses the common optimization of starting at p2 for each prime p, as all non-primes (composites) up to p2 were found in previous passes. Because of this it only needs to consider primes up to 7, because the square of the next prime 11 is 121, larger than any number here.
Date
Source Own work. Inspired on a similar picture by SKopp.
Author M.qrius

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inception

27 December 2007

media type

image/gif

File history

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Date/TimeThumbnailDimensionsUserComment
current20:17, 14 February 2012Thumbnail for version as of 20:17, 14 February 2012554 × 445 (43 KB)Waldyriousrevert my change. there was actually a logic behind the missing values, see File talk:Sieve of Eratosthenes animation.gif
18:53, 30 April 2011Thumbnail for version as of 18:53, 30 April 2011554 × 445 (44 KB)WaldyriousFix for consistency: all multiples now overlap the previous ones (previously, most of them did, but some didn't)
22:12, 27 December 2007Thumbnail for version as of 22:12, 27 December 2007554 × 445 (43 KB)Mqrius{{Information |Description=Animation that visualizes the "Sieve of Eratosthenes" algorithm by M.qrius (selfmade). Inspired by similar picture from Skopp. |Source=self-made |Date=2007-12-27 |Author= M.qrius |Permission=- |other_versions=-

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