File:Ulam 1.png

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Ulam_1.png ‎(400 × 400 pixels, file size: 3 KB, MIME type: image/png)

Captions

Captions

Ulam spiral with prime numbers as black pixels

Summary[edit]

Description 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[edit]

Grontesca at the English Wikipedia, the copyright holder of this work, hereby publishes it under the following license:
GNU head 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.
w:en:Creative Commons
attribution share alike 		This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Attribution: Grontesca at the English Wikipedia
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
This licensing tag was added to this file as part of the GFDL licensing update.

Original upload log[edit]

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. }}

File history

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Date/TimeThumbnailDimensionsUserComment
current03:12, 24 February 2013Thumbnail for version as of 03:12, 24 February 2013400 × 400 (3 KB)Yourmomblah (talk | contribs)Optimized size
11:07, 11 April 2007Thumbnail for version as of 11:07, 11 April 2007400 × 400 (6 KB)Liftarn (talk | contribs){{Information |Description=200×200 Ulam spiral. |Source=Originally from [http://en.wikipedia.org en.wikipedia]; description page is/was [http://en.wikipedia.org/w/index.php?title=Image%3AUlam_1.png here].<br/> (Original text : ''self-made with Java progr

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