User talk:Tuvalkin

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File:Vihara2010.jpg[edit]

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Wdwd (talk) 20:43, 27 October 2014 (UTC)

А и Б[edit]

I was in a mood for mischief (happy Halloween!), and decided to break the beauty of Category:Tram routes by number with some letters. So here you are: Category:Tram route А in Moscow (note Cyrillic А). I also created Category:Trolleybus route Б in Moscow, but trolleybuses are pretty non-existent in Commons category tree... Also: how about using ">" instead of "Ⅽ" for numbers > 99? It should follow the numbers directly, before any letters. YLSS (talk) 21:51, 30 October 2014 (UTC)

File source is not properly indicated: File:הרבנית רבקה סאנט.JPG[edit]

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Rodrigolopes (talk) 18:06, 31 October 2014 (UTC)

Files in Category:Grey and red rolling stock‎[edit]

moved to Template talk:TramColors#Grey v.s gray

File:Mrinal Kanti Das.jpg[edit]

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Ellin Beltz (talk) 16:51, 3 November 2014 (UTC)

Squares and matrices[edit]

Again my comment from this edit: So all squares with n*n fields are nxn matrices? No. All nxn matrices are squares with n*n fields. Matrices are mathematical objects. Don't tell me that File:Banner of Bavaria-Landshut.svg is a 2x2 matrix. (Another example: not a 4x4 matrix)

You seem to have some misconception what a matrix is. It is a mathematical object. The term has other meanings, but they have nothing to do with rows and columns. I really don't understand edits like this one. This is clearly a matrix, not just a square with 9 fields.

BTW, I think your decision to use × instead of x was very unpractical. Do you have × on the keyboard? I don't.

Anyway, thanks for Template:MatrixCat. That was a good idea. I think we could further improve it by including properties like binary or Cayley table. mate2code 17:19, 11 November 2014 (UTC)

I’m trying here to remain civil, trying really hard. Please bring the matter to the relevant talk page, and meanwhile try to avoid overcategorization and edit warring. -- Tuválkin 17:48, 11 November 2014 (UTC)

Tram transport in the United States[edit]

Hi Tuvalkin. I have reverted your change at this category, as this is a clear example of overcategorisation. Category:Tram transport in the United States is already a subcategory of Category:Rail transport in the United States, which is itself a subcategory of Category:Public transport in the United States. The guidelines on categorisation are quite clear: if it is already a subcategory of a subcategory, it should not also be a subcategory of the main category. Skinsmoke (talk) 12:30, 14 November 2014 (UTC)

Yes it is technically COM:OVERCAT, but the problem lays at Category:Rail transport in the United States being categorized as Category:Public transport in the United States, something I could have not guessed. Surely freight trains are not public transport in any usual and useful meaning of that phrase, are they? What needs to be done is not remove "publicness" from trams but from rail in general. (Are there freight trams? Yes they are, but very few, and in the US none extant — they would account for, say, 0.01% of our media on the wider subject, while freight on rail in the US notoriously surpasses the passenger kind.) -- Tuválkin 12:42, 14 November 2014 (UTC)
The way to deal with that problem then (and I tend to agree with you that Category:Rail transport should not be a subcategory of Category:Public transport) is to raise the matter at Categories for discussion for the global categorisation, and not to treat the United States in isolation. There are wider implications of course, as some elements of Category:Rail transport are proper to Category:Public transport, and it may well be necessary to create a new Category:Passenger rail transport, which would be a subcategory of both Category:Rail transport and Category:Public transport.
Category:Tram transport would then sit quite comfortably in Category:Passenger rail transport as a subcategory of both Category:Public transport and Category:Rail transport. This would mirror the situation at Category:Bus transport, which is a subcategory of both Category:Public transport and Category:Road transport.
As you say, there have been freight trams in the past (I can think of very few, or any, that still exist outside museums). Perhaps this should also be addressed, though things will start getting somewhat complicated by then! There is also the problem of getting any sort of consensus at Categories for discussion. Such discussions always seem to peter out into nothing on Commons, and drift unresolved for years, unlike categorisation discussions on English Wikipedia, where firm decisions are reached and the discussions closed by an administrator. The system at Commons, frankly, is not fit for purpose. Skinsmoke (talk) 13:16, 14 November 2014 (UTC)

File:สก 956(byAlanHaverty).jpg[edit]

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DLindsley (My talk page) 23:08, 14 November 2014 (UTC)

File:Tram number 4635, route 35 in Moscow, near Nagatinskaya metro station. 2014-02-24.JPG‎[edit]

--Brateevsky {talk} 19:44, 15 November 2014 (UTC)The bottom part of tram is orange (overall it is blue and orange). Why do you delete a category for the second time? --Brateevsky {talk} 16:08, 15 November 2014 (UTC)

I didn’t delete a category, I removed a category from a file. Why? Because that file is already categorized as Category:KTM-23 in Moscow, which is in turn categorized as Category:Blue and orange trams. If you have any doubts, it is explained in COM:OVERCAT. -- Tuválkin 19:27, 15 November 2014 (UTC)
Ah, OK, then thank you! --Brateevsky {talk} 19:44, 15 November 2014 (UTC)

File:Plaza Italia Homenaje Tranvia Buenos Aires.jpg[edit]

Hi again Tuvalkin. My reasoning at the above was that the category for the monument belongs properly to Category:Tram transport in Palermo, Buenos Aires, but the image of the tram on the tiles belongs to Category:Trams in Palermo, Buenos Aires, given that one is a category for a monument and the other is an image of a tram. However, I can't say I'm too bothered either way. Skinsmoke (talk) 10:13, 18 November 2014 (UTC)

Category:Clocks with Roman numerals (I-XXIIII)[edit]

Hmm... And if these 24 Roman numerals would be on double chapter ring? Haven't found any as yet, though... YLSS (talk) 11:57, 18 November 2014 (UTC)

Yes, that needs (or will need) its own category and possibly rearrange/rename its parent categories. It is a work in progress. -- Tuválkin 12:02, 18 November 2014 (UTC)