TeX, LaTeX and Friends

12:02 AM

@egreg: Palmeiras reached today 100 years of history. :)

1:11 AM

For those of you who blog: Rainbow.js + my WIP extensions for TeX things make for some pretty neat and cheap highlighting.

Johannes_B

6:17 AM

@1010011010 That seems to be a reasonable explanation :-)

Abhimanyu Arora

6:38 AM

hello tex users

i have a small question

@Johannes_B: are you there?

Johannes_B

@AbhimanyuArora Yes i am. Hi.

Abhimanyu Arora

Thanks :-)

May I ask you to spare a few seconds to compile the tex file and see whether it is giving an error or not?

It is here

2

Q: how to modify the following table

In the example below, you might see that I have a table: I would like to change/introduce and understand the following: How to change the column separator say to \Rightarrow. Normally one can do this by introducing @{$\Rightarrow$} when the columns are specified as {cc} etc. but in the "paragr...

tables

Apparently I get an error whereas Bernard doesn't

So I think it would be better to seek a third-party opinion

The one in the answer

Johannes_B

@A Which one exactely?

Ah

@AbhimanyuArora btw: First thing i notice: The tex is broken into parts.

Abhimanyu Arora

Yes

even if the \providecommand... is included

Johannes_B

@AbhimanyuArora btw: First thing i notice: The tex is broken into parts.

Abhimanyu Arora

6:43 AM

still doesn't seem to compile (I have been trying since yesterday)

indeed

you mean before and after

% \providecommand\given{} \DeclarePairedDelimiterXPP\EV1{E}(){}{ \renewcommand\given{\nonscript\,\delimsize\vert\nonscript\,} #1}

right?

Johannes_B

@AbhimanyuArora Exactly, that should be fixed.

Abhimanyu Arora

yes, i removed the % sign and included it in the tex with the other part, but no success

Johannes_B

Let me have a look.

Abhimanyu Arora

much appreciated, very kind

Johannes_B

@AbhimanyuArora Was taking a moment, please check if the following works as expected:

\DeclarePairedDelimiterX{\EV}[1]{E(}{)}{\renewcommand\given{\nonscript\,\delims‌ize\vert\nonscript\,} #1}

Abhimanyu Arora

7:03 AM

@Johannes_B: Many thanks. I 'm afraid it still gives and error (says undefined control sequence and points at flalign even though I have loaded amsmath)

so you mean i delete the \providecommand\given{}, right?

Johannes_B

@AbhimanyuArora nono, itś right there

I just didn't copy it.

Abhimanyu Arora

ok

nope, no success

Johannes_B

@AbhimanyuArora I didn't get any errors concerning flalign

Abhimanyu Arora

and in the command
\providecommand\given{}\DeclarePairedDelimiterX{\EV}[1]{E(}{)}{\renewcommand\given{\nonscript\,\delims‌ize\vert\nonscript\,} #1}

where are the new lines supposed to begin?

i guess that could be a source of errors

Johannes_B

@AbhimanyuArora What do you mean by New Lines?

Abhimanyu Arora

7:17 AM

@Johannes_B: Thanks very much. I mean the entire thing is not written in one single line as here screencast.com/t/p7MVS2NTr1x, right. We need to start certain portions in new lines if I understand correctly, no?

Johannes_B

@AbhimanyuArora Doesn't matter at all.

Abhimanyu Arora

I see. Then I am totally at a loss what is the source of the 60 errors (I just copy-pasted the tex...

Johannes_B

@AbhimanyuArora vvvvvvvv

\documentclass[leqno,10pt]{article}
\usepackage{soul}
\usepackage[margin=0.75in]{geometry}

\usepackage{fancyhdr}
\pagestyle{fancy}
\lhead{Lecture 1}
\rhead{Handout 3}
\usepackage{mathtools}
\usepackage{array}
\usepackage{amsthm} %for proof
\newtheorem*{mythm}{Theorem}
\theoremstyle{definition}
\newtheorem*{mydef}{Definition}
\newtheorem*{mycases}{Special cases}
\title{\ul{Conditional Expectations in Bivariate Probability Distribution}}
\date{}
\author{}

\usepackage{tabularx}
\providecommand\given{}

Abhimanyu Arora

WOWWWWWWW

I can't describe how I feel now

I really thank you Johannes

Johannes_B

@AbhimanyuArora This is bernards code with the fixed PairedDelimiterThingy.

Abhimanyu Arora

7:27 AM

@Johannes_B: I see. Very grateful to you for saving my day

Johannes_B

@AbhimanyuArora No problem :-)

Abhimanyu Arora

Cheers!

Johannes_B

12

Q: which one to use? LyX or LaTeX

Currently I am using LaTeX to typset all my math reports. Recently I found out that LyX also uses LaTeX, which can also generate pdf, accept commands from LaTeX, but is easier to use as it does not flood all the commands in one page. Question: What is the difference between LyX and LaTeX? Is th...

pdftex lyx editors

@JosephWright Isn't ^ ^ that opinion based? Especially since there are already 8 answers.

Joseph Wright

> What is the difference between LyX and LaTeX? Is there any difference between the pdf generated by LyX and LaTeX?

@Johannes_B Those parts have objective answers

Johannes_B

@JosephWright Right, didn't read it carefully (or mere remembered).

Joseph Wright

7:30 AM

@Johannes_B On the other hand, the answers do seem to be more varied

@Johannes_B One for meta, I think

Johannes_B

@JosephWright You are the mod ;-)

tohecz

7:47 AM

@Johannes_B that's how it works on many sites, unfortunately, that mods set the rules. IMHO it's wrong. However, we might as a first thing protect the question to show that 'nuff was said, @Joseph ?

Joseph Wright

@tohecz Mods don't set the rules

tohecz

@JosephWright some do :-/ I mean, not officially, but they use mod hammer where they shouldn't, pushing the rules where they want this way.

Johannes_B

@JosephWright But mods have the last word ;-)

Joseph Wright

@tohecz No, this is quite clear: mods enforce the rules decided on by site members as a whole

tohecz

@Johannes_B not necessarily. If the community decides in meta that something is the rule now, so it is, well, as long as we speak about on/off-topic discussions

Joseph Wright

7:50 AM

My point is that with a quest which might be viewed as opinion-based we really do need a meta discussion or at least some voting on the question to close it: not really one where it's clear-cut and the mod hammer is appropriate

tohecz

@JosephWright I 111% agree

Johannes_B

@JosephWright @tohecz I just skimmed the answers. Only @werners anwser takles the question. All others are opinions on the title, which is somehow misleading.

tohecz

@Johannes_B yep :)

Joseph Wright

@Johannes_B I'd suggest making a comment on the question asking if it can be made less likely to attract opinion

@Johannes_B Agreed: Werner's answer seems to cover the objective part to me

Johannes_B

@JosephWright @tohecz tex.stackexchange.com/questions/197765/…

tohecz

8:00 AM

Well, the top-voted answer is only borderline opinion-based to me: it doesn't say which is better, it says: if you go for LyX, you need to know some LaTeX anyways. This seems to be pretty objective opinion, yet it provides good context to what LyX and LaTeX are about.

@Johannes_B nice :)

Johannes_B

@tohecz As far as i know, Scott is a LyX developer.

Joseph Wright

@Johannes_B Yes, he is

Christian Hupfer

8:26 AM

Good MAEN ;-)

egreg

@ChristianHupfer Good morning!

Christian Hupfer

@egreg: Oh, hello!

egreg

@ChristianHupfer How's the weather in BW? Here it's awful.

tohecz

@egreg it seems to be awful everywhere today :(

@Johannes_B @JosephWright Question made worse :P Now we can just go on and close it completely :D tex.stackexchange.com/posts/197765/revisions

Johannes_B

8:43 AM

@tohecz That should not have happened.

tohecz

@Johannes_B no :p

Johannes_B

:-D

Christian Hupfer

@egreg: Sorry, I was away for some minutes... 'awful' is relative ;-) It rains a lot, the clouds stick to the forest mountains... I like this view

egreg

@ChristianHupfer I don't. But you're a Black Forestrian, so probably that's the best weather you can expect. :P

Christian Hupfer

@egreg: Well, depends on the mood. In winter, a lot of snow tops this view of course, and in spring the forests have a huge range of green colour tones, as well as the autumn... the summer is the worst of seasons, when it's hot here.

@egreg: I am one of the rare Germans that do not complain about rain -- we are a minority ;-) An endangered species...

Johannes_B

8:57 AM

If i change to apptocmd in tex.stackexchange.com/a/197961/37907 i get:

! Missing control sequence inserted.
<inserted text>
                \inaccessible
l.15 \chapter
             {a numbered chapter}

Can anyone point me to the reason?

Christian Hupfer

@Johannes_B: You can't use \apptocmd without hacks to a command with optional argument

Johannes_B

@ChristianHupfer The xpatch thing we discussed a few days ago

egreg

@Johannes_B Are you trying \apptocmd{\chapter}? Bad idea.

Christian Hupfer

@Johannes_B: Yes, and egreg stated, that it even xpatch stuff would not work for \chapter etc.

Johannes_B

no, apptocmd{\@schapter}

tohecz

9:01 AM

@Johannes_B there's \xappto isn't there?

Christian Hupfer

@Johannes_B: Sometimes it's better to catch the commands instead of injecting some code ;-) The structuring commands belong to this group, in my point of view. I wished, every command would have a freely programmable starting and end hook ;-)

I am off for a while, working with my hands instead with my head :D

Johannes_B

I am off too, need to eat something.

egreg

@Johannes_B I guess you can get the same error with \pretocmd; it just depends on what \botmark contains.

Johannes_B

@egreg Thanks, i'll take a look.

egreg

@Johannes_B In any case, \pretocmd seems better

Johannes_B

9:11 AM

@egreg I just added a warning to my answer. If nothing good comes out of it, i'll delete the faulty code.

egreg

@ChristianHupfer \@schapter has no optional argument; nor has \chapter. ;-)

Paulo Cereda

On my way to SP and of course wearing my Palmeiras T-shirt. :)

Christian Hupfer

@egreg: Ok, I never looked precisely into book.cls etc., \s@chapter... ok... but \chapter[Short]{Long} ... It's a wrapper somehow?

egreg

@ChristianHupfer \chapter has no argument; at the end it calls \secdef\@chapter\@schapter and \secdef takes care of looking for a *, calling \@chapter or \@schapter. In the former case it looks for [. But the \newcommand facility for defining a command with optional arguments is not used.

Christian Hupfer

9:29 AM

@egreg: I take a look into book.cls, just to see how it works

Paulo Cereda

I is hungry. :(

egreg

@PauloCereda Are you going to SP?

Harish Kumar

@egreg week's reputation order slowly stabilising with you rushing ahead ;-)

egreg

@HarishKumar I'm paying my Sunday tour, which cost me rep cap. ;-)

Christian Hupfer

@PauloCereda: I am eating a German Brezel... Do you want some chunk of it?

egreg

9:35 AM

@ChristianHupfer Etymologically, Pretzel would be a better spelling.

Harish Kumar

@egreg I noticed. I am not comfortable if you are behind me though. ;-)

egreg

@HarishKumar Do you feel like being pushed on?

Christian Hupfer

@egreg: Middle high German: brēzel ..., German Duden says Brezel too... ;-)

Harish Kumar

@egreg hehe! exactly. If you are ahead, I am glad to follow you :-)

Paulo Cereda

@egreg: yep, a visit to the concrete jungle. :)

@Christian: gimme gimme gimme, whatever it is. :)

Christian Hupfer

9:38 AM

@PauloCereda: I hope you are prepared if somebody attacks you with a banana or strawberries :D

egreg

@PauloCereda If it were “Asphalt Jungle” you could expect to meet a beautiful girl.

Paulo Cereda

I just hope USP isn't blocked today. :)

@Christian: where do I find a 16ton. thingy? :)

@egreg: ooh so true. :)

Christian Hupfer

@PauloCereda: Don't you have that in a carriage behind you, always on tour with you?

@PauloCereda: Here, a chunk of a Pretzel, to satify egreg's etymological objections ;-)

Paulo Cereda

@Christian: o.O

Pretzelmeister. :)

Christian Hupfer

@PauloCereda: My new name here:D The artist, now known als Pretzelmeister :D

\newcommand\chapter{\if@openright\cleardoublepage\else\clearpage\fi
\thispagestyle{plain}%
\global\@topnum\z@
\@afterindentfalse
\secdef\@chapter\@schapter}

@egreg: So LaTeX does defer the possible [ etc and expands \if@openright etc first?

Paulo Cereda

9:55 AM

Second bus, yay!

Harish Kumar

10:50 AM

@egregBTW I have given up on installing auctex 11.87.7 as I could not get it on board. It wasn't picking up tex files. :-(

@PauloCereda You are travelling. How do you access internet?

David Carlisle

11:08 AM

@ChristianHupfer not sure I understand the question, and I'm not egreg, but probably the answer is yes

@ChristianHupfer it doesn't really defer them (as in see them and save for later) it just doesn't see them, \chapter has no arguments so any occurrence of \chapter is replaced by the definition you show, any apparent arguments are in fact picked up by other macros.

Paulo Cereda

@Harish: a smartphone with a mobile internet plan. :)

David Carlisle

@PauloCereda oh money, I thought you were on a bus with wifi:-)

Christian Hupfer

@DavidCarlisle: That does answer my question anyway. ;-)

David Carlisle

@ChristianHupfer no point waiting for @egreg to answer anything;-)

Paulo Cereda

@David: I wish. :) The route I take has no wi-fi powered buses. :(

Christian Hupfer

11:17 AM

@DavidCarlisle: Correct! ;-) It was directed to him, since we talked about this topic two hours ago

@PauloCereda: Still travelling? Oh my...

Paulo Cereda

11:36 AM

@Christian: Yep. :)

Joseph Wright

12:06 PM

0

Q: Bibtex source in JabRef

I am using JabRef to manage my bibliography. I also edited it to have extra table entries in the such as SpecialRemarks . However, I don't want these to appear in my bibtex source. So, my bibtex source is as follows: @ARTICLE{XYZS2009, author = {X, Y and Z, S}, title = {köuhr wqeröih wefdäkl...

bibtex jabref

Huh?

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