File:Ulam 1.png
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Ulam_1.png (400 × 400 pixels, file size: 3 KB, MIME type: image/png)
This file is from Wikimedia Commons and may be used by other projects. The description on its file description page there is shown below.
Summary
DescriptionUlam 1.png | 200×200 Ulam spiral. Best displayed at 200px or 400px so each integer is represented by exactly 1 or 2×2 pixels. |
Date | |
Source | Transferred from en.wikipedia to Commons. |
Author |
Grontesca at English Wikipedia |
Licensing
Grontesca at the English Wikipedia, the copyright holder of this work, hereby publishes it under the following license:
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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. | |
Attribution: Grontesca at the English Wikipedia | ||
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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 |
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
- 2006-11-01 05:58 Grontesca 400×400×8 (6552 bytes) {{Information| Description = 200×200 Ulam spiral |Source = self-made with Java program. |Date = created 31 Oct 2006. |Author = Jeremy Smith [[User:Grontesca|Grontesca]] |Permission = GFDL (self-made). |other_versions = available upon request. }}
Captions
Ulam spiral with prime numbers as black pixels
Items portrayed in this file
depicts
1 November 2006
image/png
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 12:12, 24 February 2013 | ![]() | 400 × 400 (3 KB) | wikimediacommons>Yourmomblah | Optimized size |
File usage
The following page uses this file:
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