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8:01 PM
@Johannes_B: That depends on the class actually -- I am boring on such classes which are boring from the beginning ;-) I am the cool guy on cool classes ;-)
@egreg: By the way: Are you Sauron? ;-)
 
@ChristianHupfer What are cool classes?
 
@ChristianHupfer Not that I know of. ;-)
@ChristianHupfer My knowledge of Tolkien is inexistent (I had to google for it).
 
@Johannes_B: Classes which don't run away when hearing 'Mathematics' or 'Physics' ... more adult students, having a Ausbildung and go ahead for FH - Reife, for example
@egreg: I will never talk to you again...
egreg will not get 300k rep on LordOfTheRings.SX! ;-)
 
@ChristianHupfer One challenge i saw in school: Grundkurs and Leistungskurs were teached in one class. Terrible.
 
@Johannes_B: Unfortunately we don't have such Grund- and Leistungskurs any longer :-(
 
8:05 PM
@ChristianHupfer My chemistry lessons, sitting there to wait for the basic level students all of the time.
 
@ChristianHupfer Definitely not. I tried many years ago to read “The Lord of the Rings”, but I was bored to death after twenty pages or so.
 
@egreg You got to read twenty pages of the lord of the rings? I never got this far. Sooo boring.
 
@egreg: You should read it in the Klingon original version :D
Well, there are just two persons I should never talk to again :D
@egreg: Well, that's true for the first, say, 50 pages, and sometimes in between, but after that...
 
@ChristianHupfer … it's worse
 
@egreg Sorry, had to star this because it seems to be the truth.
 
8:09 PM
@egreg: wrong answer :D
@egreg: I read about 400 pages in English language of LOTR while being on a conference ten years ago in Cambridge, UK ... well, it does say something on the conference too :D
 
Just a kind of philosophical question: Is there a primitive that takes more than one argument?
 
So is it true that the TUG meeting 2015 will be in Darmstadt, Germany? Already saving money to get there.
 
@HenriMenke It depends on what you consider as argument to a primitive such as \hskip
 
@egreg True. This one isn't even delimited in the usual way, but I guess that also counts as one.
 
Sorry guys, but I have to return to my work...
 
8:13 PM
@JosephWright Being a moderator is more of beinig a janitor. Do you agree?
@ChristianHupfer See you.
 
To cite Arnold: I'll be back :D
 
@Johannes_B Now that I'm employed by a big airline company, distance doesn't matter so much for me :-) Can get tickets for much less.
 
@Johannes_B: Not if I see you before ;-)
 
@HenriMenke \def takes three arguments: the macro to be defined, the parameter text and the replacement text.
 
So i guess @StefanKottwitz will get to the coference by helicopter?
 
8:15 PM
@egreg Ah, of course. Thank you!
 
@Johannes_B Just if no cruise ship takes that route. Still working for cruise ship companies behalf of that airline tech part, a good combination. No helicopter though yet.
 
@StefanKottwitz Keep on doing the good work. The cruiseship will take you down the Rhine, the chopper will do the rest. ;-)
 
This is the boat @StefanKottwitz will arrive to Darmstadt with
 
@Johannes_B River cruise ships are among our customers, so the Rhine would fit as a route
 
@Stefan: Hi Stefan! I have news, just wait a couple of days. :)
 
8:18 PM
@PauloCereda Baby boy or baby girl? :-D
 
@StefanKottwitz btw: did you get my mail on the cookbook?
 
@PauloCereda I have news too, just wait a couple of months >:-)
 
@StefanKottwitz LOL a system. :)
@StefanKottwitz Oh my!
 
@PauloCereda Just to check, would arara be a boys or a girls name?
 
@Johannes_B Yes, I got it, thanks! Must reply soon. :-) Procrastinated by posting on latex-community.org
 
8:20 PM
@Johannes_B No one in perfect mind would name a person arara, but it's a feminine noun. :)
 
basic question on \date{}. I write \date{\today} in almost all my files. But this picks the date the file is compiled/changed at (ofcourse) not the date the document was originally written. Is there a good practice to include both the date the document was originally written, and the date it was compiled later on? May be something like \date{oct 1, 2009\\\today} or something like this. What is the correct way to include both dates, that is what I am asking.
 
@StefanKottwitz I'm trying my best to keep the site tidied up.
@PauloCereda Thank god, i am not in perfect mind ;-)
 
@Johannes_B Neither am I. :)
 
I do not want to lose the date the document was originally written at, but I also like to see the date the document was last changed or just compiled (I have makefile that I run which builds many files all over sometimes). Should both data be included in the title? what do folks do?
 
@PauloCereda If Keith Richards can name his daugther Dandelion i can ...
 
8:23 PM
@StefanKottwitz lol :)
 
@Johannes_B Oh my. But Keith once smoke his father's ashes... :P
 
@Johannes_B That's great! It's an idealist's job without points and badges :-)
@PauloCereda I'm curious, hard to wait, I will ask you in a few days!
 
@StefanKottwitz :)
 
@PauloCereda My father is still alive, but even if weren't, ... no sir!
 
@Johannes_B o.O
 
8:25 PM
@StefanKottwitz I wasn't put on this earth to gain badges ;-)
 
Sometimes I do this:
\author{me, July 8 2007}
\date{\small{\today}}
to include both dates.
 
Guys, i am going to sleep. Have a nice time.
 
@Johannes_B Good night!
 
@Johannes_B Good night! :)
@Nasser: I think you could use, say, datetime and create a \newdate.
 
@PauloCereda thank. did not know about this package. Looking at it now.
 
8:31 PM
@Nasser My pleasure. :) It's a great package by our Nicola Talbot. :)
 
8:46 PM
Hi. Has anyone here used the method to name the xlabel-node and anchor the legend and tick scale labels around it? link
I'm thinking of switching to it. Would save me a lot of headache when fine tuning things in the graphics but... I rather ask about experiences with it than not.
I mean, I can't think of a scenario where it wouldn't work...
 
@henry So? :)
 
@percusse My dear, so is it stable?
I mean if I kind of rework the plots and such...
 
@henry Sure.
You can try it in one or two and decide for yourself. I don't know the exact context but yes it is stable.
 
@percusse It is kind of puzzling to never stop learning such little bits. Especially the aspect of anchoring the tick scale label makes things so much easier.
puzzling in the sense of really cool
 
@henry Both has approx. 2000 pages of manual, I can never feel comfy about these monsters :)
 
8:52 PM
@percusse True... :)
 
Hey. I found some pretty interactive beamer slide a while ago, I think it got deleted, since I bookmarked it but I now can't find it. It involved an interactive frame and it looked a little like this (hopefully one of you made it and you know what I'm talking about):
For successive slides ofc
It was a tikz-based solution, I'm pretty sure.
I know it's a long shot. :-)
 
@percusse Did you notice that your meta question has been posted at just the moment that the Powers have managed to fill up most of the 'community' space so it doesn't appear :-)
 
Hm... question: say I delete those options global but would like to set the font in \footnotesize for a particular plot later on, e.g. x label style={font=\footnotesize,},, wouldn't this also overwrite (by annulling) the node name?
 
Can anyone confirm it went kapow or doesn't it ring a bell at all?
 
@JosephWright You mean the right top window? about meta and hot questions etc.?
 
8:56 PM
@1010011010 No clue what you are talking about, sorry.
 
@1010011010 You mean the ocgx stuff ?
 
@percusse Honestly, I'm not sure. Do you have a link for that?
 
@JosephWright so are we getting live javascript snippets here (as per the blog?)
 
@percusse Yup
@DavidCarlisle No, don't think so ;-)
 
@JosephWright I am known for my amazing lady luck. :)
 
8:57 PM
@JosephWright boo
 
@percusse I'm wondering about posting a 'summary' answer
 
@JosephWright Please do. I gave up and it didn't serve any purpose.
Any news from the powers side?
 
In case anyone thought the noob didn't google / read enough beforehand, you are right. legend style is a shorthand for every axis legend/.append style, and as such "appends options to the already existing style every axis legend."
 
@percusse No
 
@JosephWright Who are they by the way? The blog and the podcast guys?
 
8:59 PM
@percusse I may have to try again, but let me write an answer first
 
@percusse Staff: I don't recognise 'David Haney' but sometimes do know the others
@percusse Blog, etc., usually reflect the size of the big parts of the network
 
@percusse Which slide would this be on? Sorry, I don't see what I'm looking for at first glance.
 
@1010011010 I mean is it related to such stuff? OCG based layers etc.
 
@percusse It's really just a fancy \only<number> thingy with tikz in beamer, I guess.
 
9:06 PM
@1010011010 Then I'm out of ideas
 
@percusse No problem. Thanks for trying. I guess I'll make one myself. :-)
 
@PauloCereda Another 41 vote day. ;-)
 
Could anyone test the code at tex.stackexchange.com/questions/63283/… ? The code at the bottom doesn't work. I'm using dynblocks 0.2a as mentioned.
 
9:26 PM
@1010011010 I get ! File ended while scanning use of \pgfkeys@code
@1010011010 The same with TL2013
@1010011010 It seems that \opaqueblock<{2,3}>{...} doesn't work as advertised; it does if I use 2-3
 
@egreg Right, same here.
 
@1010011010 \opaqueblock<{{2,3}}>{...}` works
 
Usually these things go to \pgfkeys{blabla/.code={<code here>} } and I guess right brace is tripping the key setting
Bah, why do I bother :P
 
9:48 PM
 
Good MAEN
 
The bitcoin question is at 2k
 
@egreg: In Germany we have a proverb about such 'news': Und in China fällt gerade ein Sack Reis um ... ;-)
 
@ChristianHupfer To say “should I care?", I guess.
 
@egreg: In some sense yes ... or "I am very, very, very, 'very excited right now about those news (yawning)" ;-)
 
10:01 PM
Thanks @percusse and @egreg, both of these solutions worked for me. I just thought I was going crazy that this didn't work.
 
@1010011010 I left a comment to Claudio
 
Just editing out the issue is "unethical"?
 
@percusse the blue part in Southern Slovakia seems to be very politically sensitive ;)
and btw, @percusse, found the source of the "50Hz Ohhhhhhhhhhhhhm" -- it's the piano DC source.
 
@tohecz: 50 Hz perturbation signal. ;-) This reminds me on a two - days search in Laboratory Course about 15 years ago :D
 
@ChristianHupfer it's called "brum" in Czech, because the sound resembles the sound "rrrrrrrrrrrrrrrrrrrrrr" as well, "brum" is the name of the sound of bears ;)
Mains hum, electric hum, or power line hum is a sound associated with alternating current at the frequency of the mains electricity. The fundamental frequency of this sound is usually 50 Hz or 60 Hz, depending on the local power-line frequency. The sound often has heavy harmonic content above 50–60 Hz. Because of the presence of mains current in mains-powered audio equipment as well as ubiquitous AC electromagnetic fields from nearby appliances and wiring, 50/60 Hz electrical noise can get into audio systems, and is heard as mains hum from their speakers. Mains hum may also be heard coming from...
 
10:10 PM
@tohecz: Yes, I know what you mean -- I remember this 'unexplainable' signal in magnetic resonance on a two - weeks - extended laboratory experiment on Optical pumping... we cursed until we found it :D
 
@ChristianHupfer ah ok. It's a pain-in-you-know-where, for example when switching the phantom on causes hum
 
@tohecz 50Hz --> Unplug everything --> Start plugging one by one :-)
 
@tohecz: For sure it will annoy you when playing music ...
 
@percusse well, it was enough to boost all gains and use the channel volume knobs ;)
 
@tohecz: To close my remarks on that experiment: The bigger error came from an already magnetized desk, which ruined our first three days additionally... all measurements and the finetuning before were rubbish then. Nobody expects the magnetic inquistion ;-)
 
10:13 PM
@tohecz If it is not in your output yes :)
 
@percusse well, there's something like 10dB of mains hum over the white noise of the cables and mixer left, but even if I boost everything, I can't hear that one really
however, I have to find a proper method how to shield the source. I'll probably consult the experts at EE.SE ;)
 
@tohecz Try checking the grounds on your plug. It might be disconnected. A very common practice among electricians to connect the neutral and the ground.
 
@percusse it's a two-wire plug ;)
 
They think it won't matter for some reason.
@tohecz There you go. :)
 
I would shield it with some capacitance, but that sounds like that I could burn the source
 
10:22 PM
@tohecz Don't fiddle with it. Just ground it.
 
@percusse well, it means cutting a wire then or something like that
 
@tohecz Are we talking about the plug of the piano or the outlet in the wall. I should say outlet not plug
my bad
 
@percusse I live in a house with two-wire outlets ;)
 
@tohecz So when you unscrew the outlets the metals are not connected to anything, or no metals anyway
and your cable is like this
 
@percusse they're coupled: zero and gound together
@percusse yep,
 
10:26 PM
@tohecz Yea tough luck.
 
@percusse that's why I thought of stabilizing the DC side
btw, I decided to really return the microphone :(
 
Buy a proper adapter, don't homebrew them. You can't trust OEM capacitors etc. No need for taking that risk
@tohecz I am still suspicious about that but anyway better try something else for more comfort
 
@percusse yeah. But seriously, I'm pissed of at Yamaha for this shit.
 
@tohecz It's your house not Yamaha :)
 
@percusse the noise was unbearable, probably caused by more factors
@percusse well, with the two-wire plug, would it matter?
and after all, why wouldn't they stabilize the DC? it's known that this happens a lot, and a digital piano is supposed to be used in places sensitive to hum
 
10:31 PM
@tohecz It's not the DC it's the transformer causing the problem. If you have a proper ground then you won't have that problem 90% of the time.
 
@percusse but you can't have a proper ground with a 2-plug (or how's it called) anyways
 
If it was properly grounded your outlet wouldn't be providing funky AC
 
@percusse sorry, what is funky AC here? there's AC in one wire and 0 in the other one
 
That's why laptop adapters have that weird thing on their AC cords
Both for protection and filtering
My best bet is that you have dimmers and they are affecting the AC delivery
 
@percusse dimmers?
 
10:35 PM
@tohecz Because you told me that you have them on the walls connected to the same line with the outlets
The things that control the amount of light
Dial thingies
 
@percusse no dimmers, switches
 
@tohecz Then my bets are off :P
 
I won't manage to open the power supply and check the wiring
 
@tohecz Cheap transformers have a strong magnetic field around them
They can cause interference
 
@percusse I would have thought that it's a switched supply
 
10:40 PM
If you have a lot of cables bundled up together that can also affect
If it is next to a wall and the power line is passing through that also affects
 
Have a good night
 
If you hear hissing that's thermal noise so there are many things that can go wrong
@ChristianHupfer Good night
 
@ChristianHupfer night
@percusse I tried to reposition just like every wire in the room, to see whether it's catching the hum "from the air"
 
@tohecz Do you have a mobile station close by (won't be 50 Hz. but you never know)?
Roof of the next building etc.
 
@percusse well, like 3 meters above my head? :) if you mean cell-phone APs
 
10:43 PM
Yes that can be too.
Your gadget was wireless right?
 
@percusse yep
 
Maybe... I'm not sure.
 
I'll give it a try and get the same one but wired (with a special pre-amp that I don't have now so I can't test it really). But this'll be some time in the future, I leave to Paris on Monday
or I'll get a slightly better one
 
Radio frequency interference (RFI) is a big source of all kinds of noises. Many RFI interferences are easily un-detected if you can't hear the actual "radio signal". Radio interference can easily take the form of hash that sound like white noise. Proper grounding and shielding practices are your only real defence against RFI. Digital noise usually takes a form of high-pitched whine (usually round 15 kHz or so), but at lowe levels can be mistaken for hiss. Digital keyboards, lighting, computers, effect processors and just about everything which uses fast clock pulses can cause this problem. 
 
it's just that I was looking forward to the freedom of a headset and I have nothing :(
 
10:47 PM
That's a nice summary
 
@percusse conclusion: if wireless, be it digital ;)
 
:)
 
it's not so much additional cost
 
Buy a mid-level UPS.
That would solve many if not all problems.
but that radio tower is complicated business :)
 
@percusse seriously?
@percusse indeed. but I seem not to get too much noise from them on the wires. After all, all walls here have tonnes of iron in them
 
10:49 PM
@tohecz Well, I don't know how important this music business is for you, but if you need to fix this, UPS is where I would start with
Might be an overkill if you were happy until now
 
@percusse I was, yeah, and I still am. I moreorless can't hear the hum at normal levels, only if I boost everything to the extent that a key press on the piano causes my ears explode
 
@tohecz So no problem then :)
 
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