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
This image is very small, unfixably too light/dark, or may not adequately illustrate the subject of the image If a higher-quality version of this particular image is available, please replace this one; otherwise, a supplemental image illustrating this subject and available under a free license should be found or provided and uploaded as a separate file.
This image depicts the Scherk surface given by the graph of "u"("x", "y") = log ( cos("x") / cos("y") ) for "x" and "y" between -"π"/2 and "π"/2. The image was created by User:Sullivan.t.j using Wolfram Mathematica 5.0, and is released to the public domain
This work has been released into the public domain by its author, Sullivan.t.j at English Wikipedia. This applies worldwide. In some countries this may not be legally possible; if so: Sullivan.t.j grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.Public domainPublic domainfalsefalse
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
2006-12-02 17:55 Sullivan.t.j 230×187× (36564 bytes) This image depicts the [[Scherk surface]] given by the graph of ''u''(''x'', ''y'') = log ( cos(''x'') / cos(''y'') ) for ''x'' and ''y'' between -''π''/2 and ''π''/2. The image was created by [[User:Sullivan.t.j]] using [[Mathematica|Wolfram Mathematic
Captions
Add a one-line explanation of what this file represents
{{Information |Description={{en|This image depicts the en:Scherk surface given by the graph of ''u''(''x'', ''y'') = log ( cos(''x'') / cos(''y'') ) for ''x'' and ''y'' between -''π''/2 and ''π''/2. The image was created by [[:en:User:Sullivan.t.j