User talk:Omegatron/Archive01

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This archive page covers approximately the dates between February 1004 and March 2005.

Post replies to the main talk page, copying the section you are replying to if necessary. (See Wikipedia:How to archive a talk page.)


Per your question on Wikipedia:Vandalism in progress - yep, your handling of the Transhumanism vandal was perfect. I'm always impressed by how quickly trash like this (and subtler stuff too) gets spotted and removed. Keep up the good work. -- Finlay McWalter | Talk 23:34, 16 Feb 2004 (UTC)

:-) Omegatron

Check out Matth97 [1] He is a big boy - CPES 19:41, 26 Mar 2005 (UTC)


Hi Omegatron - nice work on the gyrator. Would you mind telling me what software you used in drawing the circuit diagram...? Suggestion: Let's rename R1 > R0, because that's basically given, and R2 > R, leaving essentially C and R to play with. --Palapala 09:24, 28 Feb 2004 (UTC)

I used Klunky schematic editor. It is online at
Then I took the screenshot and edited it a bit to make it prettier. I also drew a bunch of pictures for opamp configurations, so I can make an article on that, but I left them on my work computer. What do you mean that R0 is given? - Omegatron
Oh you mean that the inductor you would want to simulate would already have the R1 defined? How about we name it R1 --> RL, like a real inductor would have it labeled, and then the other R2 --> R. By the way, one of those links has the opamp inputs inverted. Do you know if it makes a difference? It seems like it would... - Omegatron
Thanks for the Klunky link. Noticed you changed the text according to the diagram. -- Yes, the Romanian page has the inputs of the opamp the other way around; I'm not an expert, this link shows it the way you did it, I'm a bit on a loss here. --Palapala 20:59, 28 Feb 2004 (UTC)
I will do the calculations sometime tomorrow and double check. And maybe send that site an email if I can. - Omegatron

Thermionic emission

In thermionic emission you added that it was initially discovered by Professor Guthrie in 1873. I did a little searching and the only person I could find was physicist Frederick Guthrie in London who lived from 1833-1886, and did research on heat, magnetism and electricity. I assumed he was the right guy. Then I found Scottish physicist Peter Guthrie Tait (1831-1901) and found he did work on thermoelectricity. Which is right? I assume it is Peter, but I already assumed too much, so I will ask the source and leave it undefined for now... - Omegatron

I wish I knew which Guthrie it was, the source I used did not specify the full name (unfortunately) but I assumed it to be a last name. -- RTC 06:42, 8 Mar 2004 (UTC)
Ok, thanks. I will keep searching... - Omegatron

Omegatron: I wasn't able to get over to the physics library before it closed that day; I'll try again soon if I get the chance.

The Dot project is intended to create maps for the Ram-bot generated articles. See Siler City, North Carolina for an example. The maps on my user page are just intended to track the progress of the project. - Seth Ilys 17:13, 26 Mar 2004 (UTC)

Forced PNG

thanks for figuring out how to force png rendering without altering appearence! Perl 23:04, 9 Mar 2004 (UTC)

Congratulations. That seems to be fairly general... --Palapala 17:19, 2004 Mar 10 (UTC)

Electronics Wikibook

Hi, since you're a DSP engineer, perhaps you would be interested in helping out with the Electronics wiki-textbook.

Yes, I would love to. - Omegatron 20:48, Mar 19, 2004 (UTC)

Howdy Omegatron. Thanks for helping with WikiBooks:Electronics. You mention on page WikiBooks:Electronics:Transistors that CMOS and TTL "are not transistors". Very true, but do you think it would be better to mention them on the "transistors" page (as examples of what one *does* with transistors), or should we move all mention of them to some other page ? -- DavidCary 20:11, 28 Jun 2004 (UTC)

Reason for HTML's irrelevancy

The numeric HTML entities for colon and semicolon are highly irrelevant, because they are never, ever used. In fact, the only time I have ever seen a numeric entity used for either of these is in the Template:Punctuation marks box, and that's only because Wikipedia attaches a special meaning to a colon, not because the HTML needed it for any reason. You can represent the character A in HTML by typing A, but no one ever does, because it's never necessary or useful. The same goes for the numeric entities for the colon and the semicolon. —Bkell 21:35, 5 Apr 2004 (UTC)

Right... But I needed to know it in order to put it in the punctuation box, and the information wasn't on WP.  :-) I figured that was reason enough to include it. Maybe it should just mention that HTML entities are the same number as ASCII for letters and punctuation? - Omegatron 21:38, Apr 5, 2004 (UTC)
Well, Character encodings in HTML already says, "Decimal and hexadecimal HTML character references can also be used, based on the Unicode numeric code for the character encoded." That should be enough information for anyone who needs to encode a colon as :. I imagine they would visit HTML instead of Colon (punctuation), as HTML is more specific to the problem they are having. (To be honest, I would go straight to the HTML spec myself.) There is no reason to include a numeric HTML entity on every page about a punctuation mark or letter or number or other character, especially if it's one that is normally just typed. —Bkell 21:47, 5 Apr 2004 (UTC)


Mostly I use Adobe Illustrator, sometimes augemented with MathCad for graphs, etc. As you can probably guess I enjoy doing them, so if you need any diagrams let me know. I'll see what I can do with a plot of the filter curves for dichroic prism -- DrBob 20:15, 8 Apr 2004 (UTC)


Looks like transistor has a big chunk of repeated text. Are you working on fixing it up? I don't want to wade in while you're at work :) Gwimpey 00:49, 5 Jun 2004 (UTC)

String instrument

"Physics of music is related, right?)" Yes, I certainly agree. Opus33 15:39, 9 Jul 2004 (UTC)

Check out...

...what I wrote at the very bottom of Wikipedia talk:Template messages. I've told this to several other Wikipedians bu no one has responded yet. 00:43, 13 Jul 2004 (UTC)

TeX Problems


On Meta:Help talk: Formula, you were asking about where to report some TeX bugs on Wikipedia. There's a new Wikipedia Bugzilla set up at; if you're still having problems, you can report them there. I'd be happy to help write a bug report if you'd like; you mentioned problems with other things missing, so I'm not sure what the extent of the problem was. -- Creidieki 22:18, 17 Aug 2004 (UTC)

Oh good. I will try to report it. - Omegatron 02:13, Aug 18, 2004 (UTC)

regards from Lobster

Nice page - but was dissapointed that the plug-ins do not work with version 1 of firefox - here is hoping they will soon - Lobster

I'm not sure why they created it; there are tons of other helpful pages out there. But I will help contribute. Yes, I installed Firefox 1.0PR just a few minutes ago and I am very disappointed that some of my favorite extensions do not work yet. I should have waited.  :-) - Omegatron 21:25, 18 Sep 2004 (UTC)
sorry not quite sure what I am doing but hopte this comment gets to you :-)
I think the XUL (type of XML) will be updated soon and then the plug ins will work - but at the mo it is not working - here is hoping
Foxy Lobster

good photo

Congratulations, people think your photos are good enough to copy:

--DavidCary 08:37, 20 Sep 2004 (UTC)

Too bad I broke that camera... - Omegatron 03:07, Jan 6, 2005 (UTC)

Answer to your question at Talk:Orthogonality

can you have infinite-dimensional vectors?

Except that it's the space that is infinite-dimensional, rather than the vectors themselves. The two most well-known infinite-dimensional vector spaces are , which is the set of all sequences of scalars such that the sum of the squares of their norms is finite (for example (1, 1/2, 1/3, ...) is such a vector because 12 + (1/2)2 + (1/3)2 + ... is finite) and L2, the set of all functions f such that

("Whatever space" could be for example the interval from 0 to 2π, or could be the whole real line, or could be something else.) Michael Hardy 19:31, 30 Sep 2004 (UTC)

Note of appreciation

Thanks for exploring the "dynamic range" issue a bit on the talk page. I checked your user page, and as a newcomer to Wikipedia want to let you know how much I appreciate your technical contributions here. You've certainly added to the place!--NathanHawking 20:10, 2004 Oct 4 (UTC)

Wikipediholic test

I do mark the errors in books I read, and have been known to send them back to the publishers in really bad cases... -- Graham ☺ | Talk 22:04, 11 Oct 2004 (UTC)

JFET picture

re: User_talk:Rparle#JFET_picture

Thanks, I was just finding my way around Photoshop when I did that one. As for making more, do you mean for the other types of transistor? I suppose I could, though I'm still not as quick as I might like to be and I'm back in college now so my free time is more limited. I do recall doing another one of a MOSFET for a college project; I'll see if I can dig it out. Rory 18:26, Nov 15, 2004 (UTC)

Thanks for help on Shannon theorem

Hi Omegatron, thanks for your quick reply on my question on the Nyquist-Shannon_sampling_theorem. It helped a lot! There only is one thing i haven't understood clearly: let's imagine a soundcard that samples audio input at 44 KHz (you see, the same with your explanation). What the soundcard does, is it takes a record of the voltage every .000025 seconds.

If you drew all those recorded values on a time-voltage diagram (time being the variable), you'd get a diagram full of dots. To reconstruct the original signal, you could draw lines between each dot and its next neighbor.

That would be quite a close approximation, but you couldn't find out what happened between those .000025-second-snapshots. Maybe there was a high voltage burst (being a Dirac distribution for example) somewhere between the intervall 1.000025 s and 1.000030 s.

Maybe you understand the problem I see - but maybe I just made a mistake at some point in my thought.

Thank you for your help, --Abdull 18:56, 15 Nov 2004 (UTC)

Copyright data request

Dear Omegatron, I have translated your article Thevenin's_theorem for the but I can’t download the image Thevenins_theorem.png because there isn’t any information about copyright. Please can you upgrade the image with the copyright data? Thanking you in advance. I follow your works on en.wikipedia and I find they’re very interesting (I think that I will translate many others). With best regards, Piero (

I'm sorry. I didn't draw that diagram. The original is at en:Image:Thevenins_theorem.jpg and was drawn by User talk:Sim. I started drawing a newer version and will finish it if you'd like... - en:User:Omegatron

Thank (You are very kind) :-)

Redirect you created at "Return to zero, inverted"

User:Jnc/RedirMissingTarget Noel (talk) 03:18, 29 Nov 2004 (UTC)

NRZI/NRZ/etc images

Hi. I can't help but notice that these images you've created appear to be a derivative work from my original Image:Manchester.png image. Would it be possible for you to highlight this somehow? However, there may be an added problem as to your wish to license the derivatives as PD, which I'm not sure is possible. Thanks Dysprosia 05:50, 3 Dec 2004 (UTC)

Article Licensing

Hi, I've started a drive to get users to multi-license all of their contributions that they've made to either (1) all U.S. state, county, and city articles or (2) all articles, using the Creative Commons Attribution-Share Alike (CC-by-sa) v1.0 and v2.0 Licenses or into the public domain if they prefer. The CC-by-sa license is a true free documentation license that is similar to Wikipedia's license, the GFDL, but it allows other projects, such as WikiTravel, to use our articles. Since you are among the top 1000 Wikipedians by edits, I was wondering if you would be willing to multi-license all of your contributions or at minimum those on the geographic articles. Over 90% of people asked have agreed. For More Information:

To allow us to track those users who muli-license their contributions, many users copy and paste the "{{DualLicenseWithCC-BySA-Dual}}" template into their user page, but there are other options at Template messages/User namespace. The following examples could also copied and pasted into your user page:

Option 1
I agree to [[Wikipedia:Multi-licensing|multi-license]] all my contributions, with the exception of my user pages, as described below:


Option 2
I agree to [[Wikipedia:Multi-licensing|multi-license]] all my contributions to any [[U.S. state]], county, or city article as described below:

Or if you wanted to place your work into the public domain, you could replace "{{DualLicenseWithCC-BySA-Dual}}" with "{{MultiLicensePD}}". If you only prefer using the GFDL, I would like to know that too. Please let me know what you think at my talk page. It's important to know either way so no one keeps asking. -- Ram-Man (comment| talk)

I've added the FAQ question you requested. Ram-Man (comment) (talk)[[]] 19:19, Dec 9, 2004 (UTC)

Jimbo and the WikiMeetup

Hey, I did talk to Jimbo this weekend about the multi-licensing drive. I have not wanted to post a more general notice on my user page partially because I am not his personal spokesperson. But I have no trouble informally mentioning to people what he said. He actually had just found out about the project from those around him before coming to the WikiMeetup and they had discussed it somewhat. He was a bit concerned because I had mentioned "incompatible fork", but that was only because I wanted to be totally honest about the risks of multi-licensing. As soon as I explained that the risk of a fork was quite low and that I was not working towards changing Wikipedia's license, he was fine with it. He is personally working with members of the FSF to improve the GFDL for a better version GFDL 2.0 that is more free and is simplified to work with projects such as Wikipedia. But multi-licensing allows us to use Wikipedia articles with other projects such as WikiTravel, and he is fine with what I am doing. It gave me a bit of a sigh of relief that I wasn't going to invoke the wrath of the WikiMedia Foundation, but instead has a measure of support. Ram-Man (comment) (talk)[[]] 13:09, Dec 14, 2004 (UTC)



Wha Happen?

Supercool Dude


I noticed you're using my {{bottompostusertalk}} template. I just made a new one that you might like better, {{usercomment}}. --Theodore Kloba 19:55, Dec 22, 2004 (UTC)

Untagged images

Hey, I noticed some of your PD circuit images don't have the {{PD}} tag. Can you tag them as such, helping the guys on the untagged images project? Kieff | Talk 04:59, Dec 23, 2004 (UTC)

Anthony Flew

You put up the pages needing attention notice. Do you think it's better now? - Omegatron 01:11, Jan 3, 2005 (UTC)

Yes, that looks wonderful. Thanks! --fvw* 13:41, 2005 Jan 3 (UTC)

bytes and octets

Re: Megabyte, etc.

8 bits does not necessarily = 1 byte. See octet and byte for more info. - Omegatron 21:52, Dec 30, 2004 (UTC)

1 Kilobyte, Megabyte, etc. do always mean 8 Kilobits, 8 Megabits, respectively. Always have, always will.

The claim of a distinction between "byte" and "octet" refers to various architectures such as the PDP-10 that supported instructions (e.g. 'LDB') on variable numbers of bits. However, since the relevant number of bits was dependent on the pointer being dereferenced (see <>), it is not and never has been coherent to use this meaning of "byte" as a unit of information (except perhaps when referring to an specific implementation of a programming language such as C on such an architecture, where the number of bits was fixed for every pointer). The 36-bit units used on PDPs were called words, not bytes. The byte page also refers quite spuriously to such things as NCR-315 "slabs", which were given a different name precisely because they are not bytes.

The only case in modern usage where the term "byte" is consistently redefined to mean something other than an octet is in Standard C. Other uses with != 8 bits are at best obsolescent, but usually incorrect. -- DavidHopwood 00:47, 6 Jan 2005 (UTC)

nbsp in numbers

In an edit to Binary prefixes you asked what's with the nsbp's. I didn't put them there, but it's pretty obvious why they are there; those numbers are written using spaces rather than commas for the thousands separators (on both sides of the decimal point). And some of them are very long numbers, with lots of digits. If you set your browser to view a large text size, you might figure it out--watch for any line breaks and see where they occur. Gene Nygaard 03:15, 20 Jan 2005 (UTC)

Congratulations, Omegatron

Congratulations! It's my pleasure to let you know that, consensus being reached, you are now an administrator. You should read the relevant policies and other pages linked to from the administrators' reading list before carrying out tasks like deletion, protection, banning users, and editing protected pages such as the Main Page. Most of what you do is easily reversible by other sysops, apart from page history merges and image deletion, so please be especially careful with those. You might find the new administrators' how-to guide helpful. Cheers! -- Cecropia | explains it all ® 19:20, 28 Jan 2005 (UTC)

I just did my first rollback! So fast and easy, everyone should have it. There are all these other buttons though with scary names like "delete". I'll stay away from those for now. - Omegatron 23:03, Jan 30, 2005 (UTC)


I have translated some or your pages (and add few) to french wikipedia, I add link too. User Oliviosu in french wiki.

Wikipedia:Image recreation requests

Greetings. I just started the Wikipedia:Image recreation requests project, and I thought you might be interested. Your help would be greatly appreciated. (I got your name from the list at Wikipedia:Wikipedians/Graphic Artists.) Best regards, – Quadell (talk) (sleuth) 03:12, Jan 30, 2005 (UTC)


I don't think there's really anything in Wikipedia policy to give you license/licence to shoehorn the language into one or the other of those two specific categories. For example, it would seem me to be quite acceptable to use Canadian English—especially if the content is related to Canada. In fact, the Manual of style specifically refers to things like this in its first two entries, perhaps elsewhere too, I just didn't bother analyzing it in detail, when it says:

  • "Each article should have uniform spelling and not a haphazard mix of different spellings, which can be jarring to the reader. For example, do not use center (U.S.) in one place and centre (Australian, Canadian, British, New Zealandic) in another on the same page."
  • "Proper names should retain their original spellings. For example, United States Department of Defense and Australian Defence Force."

Gene Nygaard 22:24, 31 Jan 2005 (UTC)

So write a spell checker that automatically figures out which dialect it is and makes the entire article consistent. Or fix them all by hand. Does it really matter? I won't use it on an article explicitly about Canada or Australia or New Zealand.
Aye... I thought I was going to avoid this discussion by adding that paragraph... :-) - Omegatron 02:42, Feb 1, 2005 (UTC)


I've sorted a fair amount of the As, Bs, and now Cs, and I've discovered that there are a fairly large number of articles that don't fit neatly into one category or another. For example, the Apaches are a literary-artistic movement in France around 1900. What's the best way to draw someone's attention to that article for lengthening? Should it go in the artist category, or the France category, or the literature category? By multi-stubbing it, I potentially draw attention to it on the part of the Wikipedian contributors who might know about it.

Exactly Andrew Watt 21:23, 3 Feb 2005 (UTC)

Tables Namespace

I really like your idea for a table namespace and intuitive editor. It seems that this issue hasn't come to light though in the larger community (or at least I only randomly found it). I'd be interested in helping your support this if you wanted to raise awareness in the community at large. If you have a moment, leave me a message with what's been happening with that proposal (if it isn't obvious from the link in your user page) and if you're still interested in pursuing it further. In any case, I was very excited to see your proposal and would be very interested in helping you champion it. -SocratesJedi | Talk 08:09, 8 Feb 2005 (UTC)

Yeah, I can't seem to get people to notice it. Nothing's been happening with the proposal. I will do all I can to help create it, but I don't know PHP/mysql/whatever people use to make this stuff. But yeah, it mostly just hasn't caught on yet. If you can help, please do. - Omegatron 14:09, Feb 8, 2005 (UTC)

I would like to put the table editor into my local copy of MediaWiki I am using for non-Wikipedia purposes. Can you drop me a mail at where i can get the software part of that?

Thanks in Advance, Peter

There is none. It is non-functional.  :-) Please comment on the discussion page if you like it and we can submit a well-developed feature request. - Omegatron 16:23, Feb 11, 2005 (UTC)

Electronics contribution


The content so far is quite impressive. I have a lot of experience in both analog and digital electronics. I'd like to contribute, but I'm not sure where I should focus my efforts.

There's a fair amount to be done wrt oscillators and filters.

Any suggestions? - Madhu

Just start editing! Here are some things I was going to work on but either no motivation or I just don't know enough about them:
- Omegatron 22:56, Feb 16, 2005 (UTC)

Cathodic protection and galvanic anodes

Hi O,egatron,

I removed your suggestion to merge cathodic protection and galvanic anodes. Galvanic anodes are only one part of one type of CP system. I am a CP engineer and intend to continue to add entries and details on CP and related topics.


Oh, excellent. Thanks. The Rust article has some info about those that might be wrong, too... - Omegatron 19:56, Feb 18, 2005 (UTC)

Image:Hartley osc.jpg

Hi Omegatron. You volunteered to handle electrical schematics on Wikipedia:Image recreation requests. I've got one for you: Image:Hartley osc.jpg. Also, Image:Heat Coil.JPG is somewhat related, although I'm not sure if it's your cup of tea or not. – Quadell (talk) (sleuth) 14:54, Mar 1, 2005 (UTC)

Bridged amplifier

I'm not sure what happened to that edit. It was in stubs so I altered it to tech-stub but the history shows that it was previously tech-stub and had category and an edit to the name that put it in triple single quotes. It looks like I was editing an out of date version except I didn't go to the history (as far as I recall). I've reverted but I don't know exactly what happened. I've seen some other things remaining in category:stub that had been altered (I thought it was just delayed updating of the category. I wonder if anyone else is seeing this? RJFJR 04:10, Mar 7, 2005 (UTC)

I checked some more. It's like I somehow edited the original version of the article instead of the latest version. I don't see why category:stub would have a pointer to the old version. It would explain why it was still in category:stub instead of tech-stub. RJFJR 04:19, Mar 7, 2005 (UTC)

Gnuplot diagrams

Hi, I don't know about maxima, but when using Gnuplot, the best is to output the diagrams as EPS. This has two advantages: you can also use them in printed documents with no quality loss, and you can convert them to raster by using a good graphics manipulation program that can do anti-aliasing. --stw (Talk) 11:01, 12 Mar 2005 (UTC)

Electrical diagrams

Go for it, man. Much better, indeed. Kieff | Talk 23:38, Mar 12, 2005 (UTC)

Spectral density and other things

Thank you for your contributions to Spectral density and Periodogram. I just wonder, why do you move the physics-stub from the bottom of the article? I thought it was more approproate at the bottom.

And a small request. Would you mind providing an edit summary? I find it very helpful for articles on my watchlist. Thanks. Oleg Alexandrov 21:33, 14 Mar 2005 (UTC)

logo for Template:Disambig

  • Halló Omegatron! Thanks for your vote and comment at de:Bild Diskussion:Logo Begriffsklärung.png. I think the result out of this vote would be an easier way to identify disambiguations at the various Wikipedias. I know how much time is spend by all the contributors and that some people have the ideas, others the technical skills or the right tools; I have none of the last ;-) According to my opinion having an icon would move things forward. Regards Gangleri | Th | T 23:05, 2005 Mar 14 (UTC)


I've replied on my talk page. --MarkSweep 03:43, 16 Mar 2005 (UTC)

periods at the end of formulas

is there a consensus that this is needed? looks bad to me. - Omegatron 00:19, Mar 19, 2005 (UTC)

I wonder if the reason it looks bad has to do with a peculiarity of using TeX on Wikipedia, as opposed to using TeX in the usual way. That is that if you put the period or comma outside the math tags, it gets mis-aligned. If you put it inside, however, it looks good. Michael Hardy 23:46, 19 Mar 2005 (UTC)
Period at the end of formula is the universal style in math. I am aware that in engineering for example, people do not do that. Did it happen that I modified something outside math (I try to stick to math, but sometimes the links from the list of mathematics topics lead into related subjects). If you would like, we can have a wider discussion about this. Oleg Alexandrov 00:24, 19 Mar 2005 (UTC)
Yeah it was an electronics article common drain, and they weren't sentences, either. I think even in mathematics articles it doesn't look good. I don't remember seeing it in my math books. It looks like a symbol, which could certainly confuse me; I don't know about other people. Perhaps it's something from typesetting that doesn't carry over perfectly to the web? - Omegatron 00:30, Mar 19, 2005 (UTC)
I just pulled two math books off my shelf (math math, not engineering math) :-) and they are different. One has no punctuation next to formulas unless they are inline with the sentence. The other has periods the way you are using. - Omegatron 00:35, Mar 19, 2005 (UTC)
I would not like to start this on the wrong foot. Can we talk first before you get on to reverting things? Oleg Alexandrov 00:29, 19 Mar 2005 (UTC)
I just reverted that one; don't worry. - Omegatron 00:35, Mar 19, 2005 (UTC)
Thanks for stopping reversions. There is nothing more pissing me off than people doing things without consultation.
I just randomly pulled 5 applied math and probabily books off my shelf. They all use period at the end. Would you like us to discuss this at Wikipedia talk:WikiProject Mathematics. Or would you take my promise that I will not mess up with any articles which are not either linked from list of mathematics topics, or in some math category, or listed as a math stub? Either way is very fine with me. Oleg Alexandrov 00:42, 19 Mar 2005 (UTC)
No, I did not consult anybody. But, I am already at letter "C", and at at least 5 Wikipedians I know had one or more of those on their watchlist. I can certainly stop until we talk this over at Wikipedia talk:WikiProject Mathematics. All up to you. Oleg Alexandrov 00:47, 19 Mar 2005 (UTC)
Let's just move this conversation there and see what other people have to add, and you can keep going with the math articles. - Omegatron 00:49, Mar 19, 2005 (UTC)
Just did that! Oleg Alexandrov 00:52, 19 Mar 2005 (UTC)