DOKUMEN123.COM

I live in England. I am a native English speaker, and retain some schoolboy French. I have a science degree.

I can program in Prolog, Perl, and PHP, and write html. I like maps.

Interactive maps

Interactive maps are a new tool being developed by the Wikimedia Foundation – see Maps/Conversation and mapbox gallery. They rely on Template:Mapframe, which is already running here on en:Wikipedia, and on some javascript, which is not. To get the javascript working, I copied it from here to User:Maproom/common.js. You can get it working for you by doing the same, using your own username. Once you have done that, you will be able to look at the specimens in this test page.

Cayley graphs

I have added some Cayley graphs to articles. You can see one to the right, and at Pauli group. If you think it would be useful to have more such Cayley graphs of small groups in articles, please let me know, and I will try to provide them.

Thanks for edits

Maybe you have come here because I thanked you for an edit, and you are wondering what motivated me. I have certainly wondered what has motivated some of the thanks that I have received.

If I have thanked you for reverting an edit I made, it was to acknowledge that you were right to do so. Otherwise, it might be because I saw your edit, and thought "that is a conspicuously good contribution to Wikipedia." Or maybe your edit made me think "I wish I had said that." Or even both.

Wikipedia accounts

I have never had another Wikipedia account. Occasionally, through incompetence, I edit while logged out. My IP address is dynamic, and usually geolocates somewhere in central southern England. Recently (2025) it's been in Abingdon.

Jytdog

In summer 2018, Clockback was reported to ANI for violations of Wikipedia policy. I had come across him before, outside and within Wikipedia. I believed that he was acting honestly though incompetently, and in good faith. But I could see that the way he was handling the ANI discussion was likely to work out badly for him. I wanted to warn him of this. I could have posted to his talk page; but I preferred any discussion between us to be private. So I decided to telephone him. However I didn't know his telephone number, and my attempts to find it failed. The ANI discussion ended in a indefinite ban, which did not surprise me.

In December 2018, Jytdog was reported to ANI. I had come across Jytdog several times on Wikipedia, and respected him as a very competent and prolific editor. His crime was that he had contacted another editor by telephone, and the call had gone badly. Jytdog was eventually banned.

So – I had tried to telephone another editor, and failed to find his number. Jytdog had known his guy's number all along, the guy had published it. If I'd managed to phone Clockback, I believe the conversation would have gone well - Clockback is a reasonable person. The guy Jytdog rang was a bit of a maniac. Why should Jytdog end up banned, and me not?

Seeing an editor I respected banned, for actions I would have taken myself, greatly reduced my motivation to contribute to Wikipedia. I continue to contribute, but am no longer willing to make any effort to learn new skills here.

Wikipedia makes efforts to attract and retain new editors. It's sad that it makes so little effort to retain experienced and competent editors.

Subpages

Of possible interest to readers

Cropping images
Overlaid images
New users and new articles
The "Right to be Forgotten"
Some location maps in use in Wikipedia
Regular map images, contributed to Commons by Carlo Séquin
Articles I have created
Raster or vector? (under development)

Of interest only to me

Links

Some pages on group theory

... that use diagrams with umbrellas and single- and double-headed arrows, without explaining what they mean:

It would be helpful if there were a page explaining what these arrows mean, so that all such diagrams could be linked to it.

User:Maproom