User talk:Lethern

I usually contribute to the pl-version of wikibooks as user Lethern. Please inform me of deletion notifications on my talk page there, not here.

Tip: Categorizing images

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Hello, Lethern!

Tip: Add categories to your files

Thanks a lot for contributing to the Wikimedia Commons! Here's a tip to make your uploads more useful: Why not add some categories to describe them? This will help more people to find and use them.

Here's how:

1) If you're using the UploadWizard, you can add categories to each file when you describe it. Just click "more options" for the file and add the categories which make sense:

2) You can also pick the file from your list of uploads, edit the file description page, and manually add the category code at the end of the page.

[[Category:Category name]]

For example, if you are uploading a diagram showing the orbits of comets, you add the following code:

[[Category:Astronomical diagrams]]

[[Category:Comets]]

This will make the diagram show up in the categories "Astronomical diagrams" and "Comets".

When picking categories, try to choose a specific category ("Astronomical diagrams") over a generic one ("Illustrations").

Thanks again for your uploads! More information about categorization can be found in Commons:Categories, and don't hesitate to leave a note on the help desk.

CategorizationBot (talk) 10:48, 23 January 2010 (UTC)

• Image:Wikibooks stats 2009.PNG was uncategorized on 22 January 2010 CategorizationBot (talk) 10:48, 23 January 2010 (UTC)
• Image:Wikibooks pl uzytkownicy.PNG was uncategorized on 22 January 2010 CategorizationBot (talk) 10:48, 23 January 2010 (UTC)

Right angle symbol

As far as I can tell the arc with a dot notation for a right angle is only used in Poland. Have you seen it in any non-polish text books? Thanks Billlion (talk) 21:48, 23 August 2013 (UTC)