View source for Portal:Mathematics/Selected picture

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{{Portal:Mathematics/Page template}}
This is the collection of pictures that are being randomly selected for display on [[Portal:Mathematics]]. (This system replaces the previous "[[Portal:Mathematics/Featured picture archive|Featured picture]]" system that was in use until March 2014.)

'''To add a new image:'''
# Edit any existing subpage in the list below (link in upper-left corner of box) and copy its wikicode.
# Select the first non-existing subpage listed below (shown as a "redlink") to start editing that subpage, and paste the wikicode you just copied.
#* If there is no "redlink" at the bottom of the list, edit ''this'' page and look for the code <code><nowiki>{{numbered subpages|</nowiki>max=''nn''}}</code>. Increase ''nn'' by 2 (so there will still be a redlink after you create one new supage) and save the page.
# Change all the relevant template parameters, as necessary.
#* Note that the value of the <code>caption</code> parameter is used as the image's "[[alt attribute|alt text]]" and so should describe the ''appearance'' of the image as if explaining it to someone who cannot see it. You need not use a complete, grammatically correct sentence for this (e.g., "animation of ''blah''" can be used instead of "This is an animation of ''blah''.").
#* The <code>text</code> parameter is displayed as a paragraph of text below the image and should use complete, grammatically correct sentences to explain the ''meaning'' of the image and its significance from a mathematical perspective.
#* If the code you copied in step 1 used the <code>size</code> parameter to specify the image size, try removing that line to see whether the image looks acceptable at the default size.
#* Finally, note that we do not use the <code>gallery</code>, <code>location</code> or <code>archive</code> parameters of the {{tl|Selected picture}} template. Also, please do not change the <code>page = picture</code> or <code>framecolor = transparent</code> lines.)
# Save the new subpage and check that it's being displayed correctly in the list below. (You may have to purge the cache to see the changes.)
#* If the default size is not acceptable (for example, if a [[Raster graphics|raster image]] is being displayed ''larger'' than its actual size or if a GIF animation is showing up as a static image), the <code>size</code> parameter can be used to set the width (in pixels) of the image.
# Edit [[Portal:Mathematics]] and locate the template call that randomly chooses the pictures for display:
#: <code><nowiki>{{Random portal component|</nowiki>max=''nn''|subpage=Selected picture|header=Selected picture}}</code>
# Increase the number <var>''nn''</var> to reflect the new count of selected pictures, and save the page.
# And you're done.

'''To find good images''' to add here, see any of the following image collections:
* [[Portal:Mathematics/Featured picture archive]] (there are still a few good images that haven't been ported from the old system)
* [[Wikipedia:WikiProject Mathematics#Featured images]]
* [[Wikipedia:Featured pictures/Sciences/Mathematics]]
* [[Wikipedia:Featured pictures/Diagrams, drawings, and maps/Diagrams]]
* [[Commons:Category:Featured diagrams]]
* [[Commons:Category:Mathematics]]
You can also simply look through the images currently being displayed in our mathematics articles:
* [[Wikipedia:WikiProject Mathematics/Recognized content]]
* [[Wikipedia:Featured articles#Mathematics]] (consider also other sections on related fields, like economics, engineering, physics, astronomy, etc.)
* [[Wikipedia:Good articles/Mathematics]]
* [[Lists of mathematics topics]]
* [[:Category:Mathematics]]
Try to select new images from areas of mathematics that are not already represented in the list below.

{{Purge page}}
{{numbered subpages|max=35}}<!-- change |max= when the list gets longer (please use 1 greater than the number of existing subpages to provide a "redlink" at the end of the list, so users can follow the instructions above) -->
{{Purge page}}