File:Sieve of Eratosthenes animation.gif
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Sieve_of_Eratosthenes_animation.gif (445 × 369 pixels, file size: 154 KB, MIME type: image/gif, looped, 159 frames, 37 s)
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Summary
DescriptionSieve of Eratosthenes animation.gif |
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 (colouring in) all multiples of successive primes. It uses the common optimisation 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 needs only consider primes up to 7, because the square of the next prime 11 is 121, larger than any number here. |
Source | Own work, Original image at Image:Animation_Sieve_of_Eratosth.gif |
Author | SKopp at German Wikipedia |
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Licensing
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | |
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This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
Captions
اعداد اول
image/gif
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 01:30, 23 November 2011 | ![]() | 445 × 369 (154 KB) | wikimediacommons>WillNess | Reverted to version as of 14:52, 31 October 2011 - as per dicussion |
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