Talk:Catenoid
Latest comment: 12 years ago by Howcheng in topic File:Helicatenoid.gif to appear as POTD soon
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The image would be better (well, more consistent with the article) if it were rotated 90 degrees. As it is, it shows a sideways catenary curve rotated around the y axis, rather than an upright catenary curve rotated around the x axis. 71.70.175.223 07:09, 21 May 2006 (UTC)
- The axes aren't labeled. The article explains a method of construction, not a rigorous mathematical definition. The picture is fine and completely accurate. Who are you to say that it was rotated around the y axis unless the axes are labeled anyway? —Preceding unsigned comment added by 24.24.142.225 (talk) 07:13, 16 June 2009 (UTC)
File:Helicatenoid.gif to appear as POTD soon
editHello! This is a note to let the editors of this article know that File:Helicatenoid.gif will be appearing as picture of the day on November 13, 2011. You can view and edit the POTD blurb at Template:POTD/2011-11-13. If this article needs any attention or maintenance, it would be preferable if that could be done before its appearance on the Main Page so Wikipedia doesn't look bad. :) Thanks! howcheng {chat} 00:28, 12 November 2011 (UTC)
An illustration of how two mathematical surfaces, the helicoid and the catenoid, may be transformed into one another. This transformation is a local isometry. The catenoid was the first minimal surface to be discovered, by Leonhard Euler in 1744. Jean Baptiste Meusnier discovered the helicoid in 1766, and its name derives from its similarity to a helix.Image: Wickerprints