Transferred from en.wikipedia to Commons by Maksim.

A Boy's surface seen from the bottom (x ~~ 0, y ~~ 0, z < -1).

This image was made by AugPi using Mathematica.

 

This diagram was created with Mathematica.

(c) AugPi, 2004. Licensed to Wikimedia.

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

	This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
	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.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue

Original upload log

Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version.

Click on date to download the file or see the image uploaded on that date.

• (del) (cur) 02:32, 5 May 2004 . . en:User:Wapcaplet Wapcaplet ( en:User_talk:Wapcaplet Talk) . . 451x449 (33987 bytes) (Lossless file size reduction)
• (del) (rev) 23:15, 28 April 2004 . . en:User:AugPi AugPi ( en:User_talk:AugPi Talk) . . 451x449 (49803 bytes) (A Boy's surface seen from the bottom (x ~~ 0, y ~~ 0, z < -1).)