TeX, LaTeX and Friends

! Undefined control sequence.
    <argument> ... ,\theta \\ \text {Range} & \mathbb
                                                      R & 0\leq \theta \leq 2\pi...
    l.143 \end{gather*}

where, if even, around there should I be looking?

egreg

@GBeau You're missing \usepackage{amssymb}; it should be \mathbb{R}, by the way.

GBeau

@egreg that was it, and the package I was trying to remove was loading it :3

thanks

when does that matter?

{R} over R

for \mathbb

tohecz

@GBeau Well, it depends on what you call "matter". If you mean "works", then: \mathbb R works always. If you mean "is a good coding style", then: \mathbb R is never a good coding style, because R is a macro parameter and these should be enclosed in brackets in LaTeX.

michal.h21

1:04 PM

Hi all, is it possible to distinguish by exit codes whether LaTeX compilation failed or document compiled with errors? In my simple test both cases returned status code 256m which isn't exactly helpful

tohecz

@michal.h21 no AFAIK, but you can tell in some ways whether the compilation was finished. For example something like

\newwrite\endwrite\AtEndDocument{\immediate\openout\endwrite=\jobname.end\relax‌\immediate\write\endwrite{FINISHED}\immediate\closeout\endwrite}

, and of course: echo > myfile.end before calling latex.

egreg

@michal.h21 No, TeX doesn't provide exit codes other than 0 (good) and 1 (errors)

michal.h21

@tohecz I need this in make4ht (which is replacement for htlatex script), so I testing is done from Lua and I can't modify source documents :(

tohecz

1:20 PM

@michal.h21 ah :(

michal.h21

@tohecz but maybe I can test just last line of the log file for No pages of output. as I just want to stop pipeline of commands in the case of fatal error.

tohecz

@michal.h21 well, log testing would make sense

michal.h21

@tohecz yeah. I just hoped for easier way, as I have already access to exit codes from Lua's os.execute

Paulo Cereda

@michal.h21: I had a similar problem. When you use a nonstopmode switch or similar in the TeX code, the engine will return a non-zero value regardless of its compilation status. :(

michal.h21

@PauloCereda ah, that's really nice :(

Paulo Cereda

1:33 PM

@michal.h21 Sorry to tell you this. :( @Joseph might tell you exactly which macro raises this (I don't know). But it's a sad behaviour.

michal.h21

2:36 PM

@PauloCereda it was not really that difficult to parse last line of log file for No pages of output, it works perfectly :) (at least I hope :)

David Carlisle

@JosephWright yes, I wondered about replying to say we don't expect byte-for-byte but we want to know the differences so we can normalize (and testing logs is the best way we have of doing regression and cross engine tests)

Paulo Cereda

4:05 PM

@michal.h21 Yay! :)

Joseph Wright

5:01 PM

@DavidCarlisle Indeed: I've given myself a while to avoid coming across as perhaps annoyed, and will write something to the effect you say in a bit

Paulo Cereda

6:06 PM

Guys, does any of you notice some weird font rendering in the main site in FF?

At least, Linux people. :)

David Carlisle

@PauloCereda how weird is weird?

Paulo Cereda

@DavidCarlisle Wrong font. :)

David Carlisle

@PauloCereda looks ok here (and ff says its lucida sans unicode) windows of course:-)

Paulo Cereda

@DavidCarlisle boo. :)

David Carlisle

@PauloCereda I answered a vim query today

Paulo Cereda

6:13 PM

@DavidCarlisle Wow!

David Carlisle

@DavidCarlisle alright. Apparently I need to run pdflatex --shell-escape <file> but I am not sure where do I put this in my vimrc. Because I use vim latex. — user1880405 48 mins ago

michal.h21

6:26 PM

@PauloCereda it looks same as usual in Fedora :)

Paulo Cereda

@michal.h21 I suspect it's one of my add-ons. I'll try to disable them later. :) Are you a Fedora user too? :)

michal.h21

@PauloCereda yes, Fedora, Vim and Vimperator :)

Paulo Cereda

@michal.h21 ooooooh! <3

I'm using VimFX. :)

michal.h21

@PauloCereda I suppose I should delete previous message before David comes back :)

Paulo Cereda

@DavidCarlisle: ^^^^^^^^^^^

David Carlisle

6:31 PM

@michal.h21 too late

Paulo Cereda

@michal.h21 nah. :)

@David: the vim gang is powerful. :)

michal.h21

@DavidCarlisle ouch :(

David Carlisle

@PauloCereda you need all the self help you can get

Paulo Cereda

@DavidCarlisle Why does that sound like an emacs buffer? :)

David Carlisle

@PauloCereda you should switch to a real editor like notepad

Paulo Cereda

6:33 PM

@DavidCarlisle ed or joe or pico. :)

oh wait, let's all use cat.

michal.h21

@PauloCereda I remember I used copy con to write machine code when I was kid

in DOS

Paulo Cereda

@michal.h21 Oh my! :)

I remember copy con!

Johannes_B

1

A: filecontents can't update my bibliography database

If the file \jobname.bib already exists, it will not be overwritten by statements such as \begin{filecontents}{\jobname.bib} ... \end{filecontents} In such cases, you need to use the "starred" variant of the environment so that any pre-existing contents of \jobname.bib will be overwritten: \...

I am right with my comment, am i?

David Carlisle

ed on george anyone? en.wikipedia.org/wiki/GEORGE_%28operating_system%29

@Johannes_B yes

Johannes_B

@david I was worried that my mind plays tricks on me.

David Carlisle

6:41 PM

@Johannes_B texdoc usrguide :-)

Johannes_B

@david Harish said the same yesterday (the comment is now deleted). And both, @HarishKumar and @mico, have much more rep than me.

David Carlisle

@Johannes_B hi rep users can be wrong, @egreg demonstrates this quite often:-)

Johannes_B

@david :-D

egreg

@DavidCarlisle Ah, ah! /sipping the traditional glass of wine on the train

David Carlisle

@egreg that explains a lot, you should try answering when sober!

@egreg going home late tonight?

egreg

6:51 PM

@DavidCarlisle This is my usual time. The train is approaching the station, just 10 minutes late.

Johannes_B

7:11 PM

I hope that this is not production code:

\chapter{Kapitel 02}

...
\\ \\

$  A = 1 + \dfrac{b}{c}  $

\vspace{0,50cm}

$  D = \dfrac{10 + cos\eta}{2}  $

\vspace{0,50cm}

mit $  sin\mathnormal{\eta} = \dfrac{E_1}{E_2}  $

\vspace{0,50cm}

David Carlisle

@Johannes_B where did you find that?

Johannes_B

@david golatex.de/…

Christian Hupfer

Good maen

David Carlisle

@Johannes_B ifthen, pslatex, lscape : clearly OP has excellent taste in packages.

4

Johannes_B

@DavidCarlisle If pslatex is loaded, the greek letters get uppercased.

David Carlisle

7:18 PM

@Johannes_B it's a brilliant package, any wrong letters must be user error

Johannes_B

@DavidCarlisle See my minimal example at the end :-)

David Carlisle

@Johannes_B I ran that, what am i supposed to see?

@Johannes_B \mathnormal does nothing, but apart from that it all looks as expected?

Johannes_B

@DavidCarlisle The OP wants the \eta to be italic

David Carlisle

@Johannes_B well tough

@Johannes_B pslatex is aimed at only using the fonts built in to a 1980's apple laser writer, and that didn't have slanted Greek.

Johannes_B

@DavidCarlisle I am looking at the sty file, but i am a bit confused.

@david In which part of the internet did the OP find that?

David Carlisle

7:27 PM

@Johannes_B a work of art

Johannes_B

@DavidCarlisle Surely ;-)

David Carlisle

note \ProvidesPackage{pslatex}[1996/07/24 v1.2 pslatex emulation (DPC)] it was an emulation in 1996 emulating a package that was old then

Johannes_B

@DavidCarlisle Why am i imagining you saying: "Don't call me Surely!"?

David Carlisle

@Johannes_B too long spent watching films instead of reading the texbook

Johannes_B

@DavidCarlisle Just seen the trailer. But it is on my list.

Johannes_B

7:45 PM

It is late, i am going home. See you guys.

Joseph Wright

8:29 PM

Working on my two videos from the UK-TUG meeting

tohecz

9:10 PM

@JosephWright cool

Joseph Wright

@tohecz Can't upload until Sunday: out of space on Vimeo at the moment

tohecz

@JosephWright lol

Joseph Wright

@tohecz I could ask the committee to pay, but for once-a-year it's not worth it

tohecz

@JosephWright and how do you do it then? You delete something?

Joseph Wright

@tohecz You get 500 Mb per week, so have to wait for the next quota

tohecz

9:13 PM

@JosephWright ah ok. Makes sense then.

you could as well write to vimeo and say: "We're non-profit, could we kindly ask you to increase the quota for us for free?" but it's prbbly not worth it

Joseph Wright

@tohecz It's not actually expensive to get more: we could pay happily

@tohecz For once-a-year, as I say, not worth the effort

tohecz

@JosephWright yeah

egreg

9:44 PM

@PauloCereda 0:0. :(

Joseph Wright

@tohecz Videos ready, just need to wait for the quota

tohecz

@JosephWright cool :)

tohecz

11:07 PM

@JosephWright btw, I didn't think that the NOx question would get 14 upvotes. I'm impressed. (I was actually afraid that it's gonna be closed as OT ...)

Iplodman

'Ello all!

How goes it?

tohecz

@Iplodman hhi there :) I'm quite fine, just tired (and looking forward to some Xmas laziness)

@Iplodman and you?

Iplodman

Good, good :)

Just watching TV and browsing Amazon.

tohecz

@Iplodman well, I'm browsing various keyboard/synth reviews, and I can't decide which stuff is the good stuff (not that I'm going to buy it now, now I only extend from mono to proper stereo 2x100W sound)

Iplodman

11:25 PM

Ah, I'm not good with audio stuff. I'd recommend a Razer keyboard, though.

Razer can get pretty pricey though.

amazon.co.uk/gp/aw/d/B00OBPTZ6U/…

tohecz

@Iplodman a different type of keyboard, and a different notion of "pricey" :D

amazon.co.uk/Korg-KROME73-KORG-KROME-73-Workstations/dp/…

Iplodman

Damn!

In that case, I can't help at all ;P

tohecz