TeX, LaTeX and Friends

12:01 AM

Something like this?

\documentclass{article}
\usepackage{amsthm}
\newtheorem{thm}{Theorem}[section]
\makeatletter
\newcommand\mypar{%
  \@startsection{mypar}{100}{\z@}%
  {3.25ex \@plus1ex \@minus.2ex}%
  {-.5em}%
  {\refstepcounter{thm}}{\thethm}}
\newcommand\myparmark[1]{}
\newcommand\l@mypar[2]{}
\makeatother

\begin{document}
\tableofcontents
\section{Foo}

\mypar Something.

\begin{thm}
$1+1=2$
\end{thm}

\mypar Something else.

\end{document}

David Carlisle

@egreg very modern though:-)

egreg

@DavidCarlisle I'm not bound to 1995 technology.

@DavidCarlisle I see another tikz-pgf answer that shows your mastery of the subject

David Carlisle

@egreg I must try writing a TeX document, other than MWE from here, one of these days: perhaps I'd catch up with all this modern stuff then.

egreg

@DavidCarlisle A good manual for MathML?

David Carlisle

@egreg It's good to know one pgf command plus the use of \let to save its results:-)

Paulo Cereda

12:06 AM

@egreg Some tests for dandelion. :)

David Carlisle

@egreg that is the one document that is typeset with latex:-) Hardly any manual control over it though (and the pdf is low priority compared with html) so it's not beautiful

egreg

@DavidCarlisle \pgfmathsetmacro\foo{<expression>} spares a \let\pgfmathresult\foo

\documentclass{article}
\usepackage{tikz}

\begin{document}
\begin{tikzpicture}[declare function={a=0;b = 5;}]
\pgfmathsetmacro\fooA{{a}}
\pgfmathsetmacro\fooB{{b}}
  \foreach \x in {\fooA,...,\fooB}{
    \draw (\x,0) -- (0,\x);
  }
\end{tikzpicture}

\end{document}

David Carlisle

12:48 AM

@egreg yes there was a comment on my answer about that command. But as I say I only know one command. (But I just posted another tikz-pgf answer:-)

kan

3:48 AM

Too localised: it is one of those places where (node.<direction>) is the answer....

0

Q: Problem with left arrow on a flowchart

I'm making a flowchart for a thesis on math, and i'm having problems doing the straight arrow on the left side. Can someone give me a light about it? The problem is in \draw [line] (caixa2.west) -- ++(0,-2) node(lowerleft){} -| (caixa8.west); Its ok for the right side \draw [line] (caixa4...

@PauloCereda's favourite character is on TeX.SX: tex.stackexchange.com/users/8689/cookie-monster

2

user1460166

5:55 AM

Hi

anyone here?

I have a small question

Dominic Michaelis

i am here but i don't think i can help

Joseph Wright

9:34 AM

Will be on-and-off today: laptop problems continue. The HD is OK (I've booted it in another chassis), so either the cable or the mainboard had gone. Likely to have to buy a new machine :-(

egreg

10:01 AM

@JosephWright I know the feeling.

Count Zero

hi there :)

@DavidCarlisle: you wanted to talk to me? (some 5 days ago... some lag from my side...)

@MarcoDaniel: can I ask you about the TikZ examples for mdframed?

David Carlisle

@CountZero can't remember:-)

Count Zero

@DavidCarlisle nevermind :)

David Carlisle

I've just got a double-sided badge. How do you wear it?

Count Zero

inside-out?

:P

Marco Daniel

10:20 AM

@CountZero Of course

@DavidCarlisle How do you display the button "double-sided"?

Count Zero

@MarcoDaniel Maybe you ave seen this: tex.stackexchange.com/questions/110527 ?

the question popped up when I used your Example 5

maybe it's a bit of nitpicking, but that missing space in the framed title of the box annoyed me with larger font sizes... :)

Marco Daniel

@CountZero I had never noticed the missing space.

Count Zero

@MarcoDaniel I did :P

what do you say if I update the TeX source and send it to you by e-mail?

Marco Daniel

@CountZero I am happy about improvements ;-)

Count Zero

@MarcoDaniel great! :) I'll also replace the deprecated \tikzstyle with \tikzset, ok?

Marco Daniel

10:33 AM

@CountZero Today I learned that the command is deprecated ;-) tex.stackexchange.com/questions/111012/…

egreg

@Herbert got a well deserved gold pstricks badge! Congratulations!

Count Zero

@MarcoDaniel Hehehe... me too! One of the good things we get from our TeX.SX membership ;)

Marco Daniel

@egreg @Herbert: Congratulations

@CountZero Indeed

Count Zero

+1 congrats! :)

@MarcoDaniel ok, I'll send the modified source, ready to be compiled & posted in a couple of minutes

egreg

@MarcoDaniel [tag:double-sided]

Marco Daniel

10:36 AM

@egreg Thanks.

Count Zero

@MarcoDaniel there you go - should be in your mailbox by now

Marco Daniel

@CountZero Thanks.

David Carlisle

@MarcoDaniel I'm tempted to answer "either way round", but I suppose that isn't the answer you wanted?

Marco Daniel

@DavidCarlisle :-)

@egreg: Did you get a notification: tex.stackexchange.com/questions/111018/…

egreg

@MarcoDaniel No, there's a comma between the names. Would you write an answer?

Marco Daniel

10:50 AM

@egreg I was thinking about closing as TL.

egreg

@MarcoDaniel I don't think it is.

David Carlisle

@MarcoDaniel answer would be better I think, the error reporting there is rubbish.

@egreg you should answer: you need the points you're not even capped yet (despite me voting for you a couple of times:-)

Marco Daniel

@DavidCarlisle Ok

David Carlisle

@MarcoDaniel voted:-)

Marco Daniel

@DavidCarlisle Thanks.

David Carlisle

11:19 AM

@egreg I see you approved it but do you think (only) removing thanks is a good idea, I've rejected them as too minor if they came past me in the review queue. That user seems to do nothing but removing thanks from people's questions:-)

egreg

12:07 PM

@DavidCarlisle If it's a very recent question, then it's an acceptable edit.

Dominic Michaelis

12:22 PM

@egreg @DavidCarlisle what are your favorite fonts ?

egreg

12:38 PM

@DominicMichaelis I've no favorite and use several.

Dominic Michaelis

I usually take the default is it good ?

egreg

@DominicMichaelis For technical papers it is (it's derived by a Monotype font in their Modern series), but not only for this field. Were I to typeset baroque era Italian poetry, I wouldn't use it.

Dominic Michaelis

for math and physics it should do the trick or ?

someone said mathpatso or something like that would be better

egreg

@DominicMichaelis It's not better or worse, it's just different.

Dominic Michaelis

12:58 PM

how can i make an enumeration like a c

b d

egreg

1:08 PM

@DominicMichaelis Did you look at the multienum package?

Dominic Michaelis

@egreg this is what i am looking for i guess, how many packages do you know by name, i am just curious :D

egreg

@DominicMichaelis Also tablists

Marco Daniel

1:38 PM

@CountZero: I uploaded the new version at github -- Thanks

egreg

2:07 PM

@DominicMichaelis Just texdoc -s enum for the first and ls -d $(kpsewhich -var-value TEXMFDIST)/tex/latex/*tab* for the second (remembering that some package for that exists)

kan

3:46 PM

This question is on the unanswered, while the OP seems not to have responded at all:

2

Q: Fonts and calibration in math mode

Anyone have any ideas on how to obtain the small + in the subscripts, shorter \overline on the \mathbb{N} and the fat \verts on the semi norm on the bottom as seen in the following notation?

math-mode subscripts

I am tempted to upvote so that this is off the unanswered list, but seems to me that, \bigvert defined is a little too thick. I know how to modify that, but, shall I just leave that as a comment for completeness or edit it in?

egreg

4:16 PM

@kan I didn't notice it. Answer provided. :)

NLed

Hey guys, what's the best way to add a double vertical line in a \tabular table ?

such as

hi
=
hi

Qrrbrbirlbel

@NLed \hline\hline works. (Those are horizontal lines.) Or do you use booktabs, then \midrule\midrule?

egreg

@NLed Never use vertical lines in tables. ;-) And never use double horizontal lines either.

kan

@egreg Oh, nice! Thank you!

Am I missing something however, the code has only three calls to \fatnorm[foo]{v} but there are five such in the output.

Dominic Michaelis

@egreg what is when someone wants to make a list where someone else handwrites in ?

NLed

4:19 PM

I meant horizontal lines, ill try that @Qrrbrbirlbel

\hline \hline seperates the two tables, I need them to be connected

just like my double vertical line used there

@egreg I'm not sure if you meant these double lines

egreg

@NLed Yes, I meant those: one vertical line is bad, two is awful.

@NLed Read the documentation of the booktabs package: it's illuminating.

David Carlisle

@egreg But if you use colortbl and have two vertical lines in matching colours (with a third colour in the space between), then surely they are good?

Dominic Michaelis

@egreg 3 vertical lines is a reason to hunt you down ;)

NLed

I'm trying to separate interactive from background for visual convenience

so double lines work well here

egreg

@NLed No, they don't: you're trying to convey the idea that 10 has nothing to do with "Clock radio". Any vertical rule is a wall, two are a double wall.

NLed

4:28 PM

cant find a way to add double horizontal line without separating them as shown previously.

Qrrbrbirlbel

@NLed Then you need to use the hhline package, I guess. But really, for such a simple table is no need for so many lines. booktabs shows you some beautiful tables without any vertical lines.

NLed

@Qrrbrbirlbel I tried hhline before asking here, it still separates both tables.

well I listend to you @egreg and removed the vertical line, but I still want the horizontal line.

Qrrbrbirlbel

@NLed Then you're not using it right. ;)

NLed

listened*

David Carlisle

@NLed hhline allows all kinds of crossing or not at intersections. (I don't always believe what it says in booktabs:-) One thing I would do is align the numbers, using dcolumn for exanple

NLed

4:31 PM

& \multicolumn{1}{|c|}{Vacuum cleaner} & 1000 \\
\hline
\multirow{4}{*}{\textbf{Background}} & \multicolumn{1}{|c|}{Fans} & 750 \\

this is the transition from interactive to background

if I replace \hline with \hhline{===} or \hline\hline I still get a separation

Qrrbrbirlbel

You need to use # then.

David Carlisle

@NLed If you only use ===== it actls like \hline\hline you need to say where you want crossing lines

Qrrbrbirlbel

@NLed Have you taken a look into the manual, there @DavidCarlisle describes how to use it.

NLed

Wow that confused the hell out of me

one sec @Qrrbrbirlbel let me get my head through this

David Carlisle

@NLed I thought it was as eloquent and clear piece of literature as you are ever likely to find:( But you don't just need to read the table out of context there is a full manual with examples and things.

kan

4:40 PM

@egreg You remember the problem we were trying to do, about atmost one non-separable element? Can you please give me your proof. Mine is broken, in the following sense: separable closure of F is a subfield of F. And, between the ground and the separable closure there are only finitely many extensions. And, then, there is a purely inseparable extension. Now, you inevitably assume characteristic p and then, note that, the minpoly of beta is of the form g(x^{q}) where q = p^e (and g separable).

And, finally, we'd have to do some more magic. So, I'd prefer your proof to mine if its constructiv…

NLed

@DavidCarlisle sorry but my latex skills are very weak

I have been using latex for 2-3 weeks now

Okay I did this : \hhline{#=#=#=#}

there are some extra lines there (vertical lines)

Qrrbrbirlbel

@NLed How does it look with | instead of #. # is needed if you have double vertical lines.

David Carlisle

@NLed ah well egreg and I have been using it for 2-3 decades

NLed

@Qrrbrbirlbel ahh perfect, works well except for one little small detail

David Carlisle

@NLed it's supposed to be a vsula clue # is for two vertical lines crossing two horizontal ones, just use |

NLed

4:43 PM

can you see the 2nd line ? its a bit off

OCD much ? hahaha

@DavidCarlisle that's incredible, 2-3 decades !! I was introduced to it by a friend a month ago !

egreg

@kan Sorry, but the proof is in Cohn's book in my office.

David Carlisle

@NLed That's because you have the vertical rules at the left of the column.

@NLed 1987 I started

NLed

@DavidCarlisle I'm using this \hhline{|=|=|=|}

kan

@egreg you simply wrote the proof near the question? OK, I'd ask on monday... :)

NLed

@DavidCarlisle Oh wow, so mastered latex ?

you*

kan

4:45 PM

@egreg Cohn's book BTW is out of bounds for me. I'll have to buy a copy somewhere...

Qrrbrbirlbel

@MarcoDaniel I take wrong back, but use at begin day scope instead of before to make the \tikzset local and then use .append style to not overwrite the style:

execute at begin day scope= {%
         \ifdate{weekend}%
            {\tikzset{every day/.append style={fill=red!10}}}
            {}
   }

kan

@NLed tex.blogoverflow.com/2012/04/… :)

David Carlisle

@NLed yes I meant the lines in your main entries you have \multicolumn{1}{|c|} which puts a rule at the left of the second column, latex never puts rules at the left except for the first column. It would be better to put the rule in the right of the first column

NLed

@kan Thank you for the link :)

kan

@DavidCarlisle seriously, tell me wasn't that your cat typing and you editing?

NLed

4:47 PM

@DavidCarlisle I'll try that now

Umm .. sorry but how do I " put the rule in the right of the first column "

Cortizol

Regards to all

I would like to learn a little more about fonts in LaTeX, to better understand how they work and to learn how to change them for my needs. Do you know any good books/textbook to help me with that?
I am beginner (sort of) in LaTeX, so any help is appreciated :-)

NLed

in front of this ? \hhline{|=|=|=|}
\multirow{4}{*}{\textbf{Background}} & \multicolumn{1}{|c|}{Fans} & 750 \\

David Carlisle

@NLed I'm not sure if multirow supports it actually, I'd have to check, probably \multirow{4}{*|}

NLed

@DavidCarlisle one sec

\hhline{|==|=|}
\multirow{4}{*|}{\textbf{Background}} & \multicolumn{1}{|c|}{Fans} & 750 \\
\cline{2-3}

gives

David Carlisle

@NLed you want {c|} not {|c|} but as I say I'd need to check whether the multirow package allows specifying rules.

egreg

4:54 PM

@kan I found a similar proof in another book. Assume a and b are algebraic over k (infinite field) and let a=a_1,...,a_m, b=b_1,...,b_n be the distinct roots of their minimal polynomials. Each equation a_i+b_jX = a+bX has at most one solution in k; so there's a c in k such that a_i+bc is unequal to a+bc for 1≤i≤m, 2≤j≤n. The claim is that d=a+bc is a primitive element.

One considers the minimum polynomial g(X) of b, and f(d-cX), where f(X) is the mininum polynomial of a. These polynomials have only the root b in common. Can you go on?

According to Cohn one can assume that only one between a and b is separable.

David Carlisle

@NLed Impossible to work just seeing fragments, you need to put a full document somewhere eg a question on site if it doesn't work, but basically uou can specify the rules in your main table preamble if you have \begin{tabular}{|c|c||c|) then the first two rules are in the first column.

NLed

I just thought this question is easy and wouldnt need a separate topic, might be marked down or just closed as a duplicate ..

one sec ill show u the whole code

\begin{table}[h]
\caption{Power consumption for loads in Case study}
\parskip-5pt
\centering
\begin{tabular}{|cc|c|}
\hline
\multicolumn{2}{|c|}{\textbf{Loads}} & \textbf{Power Consumption \newline (KWh)}\\

\hline
\multirow{12}{*}{\textbf{Interactive}} & \multicolumn{1}{|c|}{Clock radio} & 10 \\
\cline{2-3}
& \multicolumn{1}{|c|}{Electric blanket} & 60 \\
\cline{2-3}
& \multicolumn{1}{|c|}{Radio} & 70 \\
\cline{2-3}
& \multicolumn{1}{|c|}{Television} & 120 \\
\cline{2-3}
& \multicolumn{1}{|c|}{Computer} & 150 \\

kan

@egreg Could you please clarify this one: "so there's a c in k such that a_i+bc is unequal to a+bc ". I am a little lost. (I could understand the previous statement.)

egreg

@kan It's "a_i+b_j c"

kan

@egreg Hah, true that! OK.

David Carlisle

5:11 PM

@NLed grr MWE should start with \documentclass ... however you have far to many \multicolumn{1} and don't use [h] as that mostly specifies that the table should go to the end of the document.

\documentclass{article}

\usepackage{hhline,multirow,dcolumn}

\begin{document}

\setlength\extrarowheight{2pt}
\begin{tabular}{|c|c|D{.}{.}{4.0}|}
\hline
\multicolumn{2}{|c|}{\textbf{Loads}} & \multicolumn{1}{c|}{\begin{tabular}{@{}c@{}}
  \textbf{Power Consumption} \\(KWh)\end{tabular}}\\

\hline
\multirow{12}{*}{\textbf{Interactive}} & \multicolumn{1}{c|}{Clock radio} & 10 \\
\cline{2-3}
& Electric blanket & 60 \\
\cline{2-3}
& Radio & 70 \\
\cline{2-3}
& Television & 120 \\
\cline{2-3}
& Computer & 150 \\

egreg

@Nled Here's my proposal

\documentclass{article}
\usepackage{booktabs}
\begin{document}
\begin{tabular}{llc}
\toprule
\multicolumn{2}{c}{\textbf{Loads}} & \textbf{Power Consumption (KWh)}\\
\cmidrule(lr){1-2}\cmidrule(lr){3-3}
\textbf{Interactive} & Clock radio & 10 \\
& Electric blanket & 60 \\
& Radio & 70 \\
& Television & 120 \\
& Computer & 150 \\
& Lighting system & 200 \\
& Stereo system & 350 \\
& Clothes washer & 500 \\
& Microwave & 750 \\
& Toaster & 800 \\
& Coffee maker & 900 \\
& Vacuum cleaner & 1000 \\
\midrule

@NLed Empty cells mean "repeat", so there's no need of \multirow

The second horizontal rule could be the same as the first.

David Carlisle

@egreg actually that looks quite nice, I'd do that but use the dcolumn setting for the numeric column, as in my version.

NLed

@egreg you're a genius in tables aren't you ? Such a lovely design !

egreg

@DavidCarlisle That's an enhancement. Or an S column courtesy of siunitx

NLed

@DavidCarlisle I will test that give me a sec

kan

5:17 PM

@egreg So, we know that g(X) divides f(d-cX) as both g(X) and f(d-cX) are polynomials over the extension field, say K (for discussion) and have b as a root; and further, g is the minimum polynomial. But, by construction, the f has no b_j, j>1 as its root. Thus, the minimum polynomial should be g(X) = x-b, but this means, b in k, the ground field. Is this OK?

Joseph Wright

@Paulo Laptop problem sorted, but regrettably the expensive way

egreg

@kan Seems so. But can't check now.

@NLed Change the top lines as

\begin{tabular}{llS[table-format=4.0]}
\toprule
\multicolumn{2}{c}{\textbf{Loads}} & \textbf{Power Consumption} (\si{kWh})\\
\midrule
\textbf{Interactive} & Clock radio & 10 \\

Load the siunitx package and here's the result

The correct name should be "kWh", not "Kwh"

NLed

Thank you @egreg

and thank you @DavidCarlisle

really appreciated :)

Qrrbrbirlbel

@NLed One of many booktabs missionaries, certainly not the last one. ;)

kan

@egreg The last step I have there requires a little more argument, I believe. I think I'll typeset and give you a link, so you can see everything in one go, easier for you to decide. :)

NLed

5:26 PM

@Qrrbrbirlbel Oh i forgot to hank you too !! thanks for the info :)

thank*

Qrrbrbirlbel

@NLed By the way, you can edit your chat messages for a limited time (2 minutes). Use either the Up key or the button that pops up in the context menu of the chat message (on the left side).

NLed

@Qrrbrbirlbel This just got me thinking .. Is there a chance this table code will be marked as plagiarism if I hand in my pdf file ?

@egreg @DavidCarlisle Can you please remove your comments about my table and delete mine too ? I do not want my Uni to think I copied the table from somewhere !!

Qrrbrbirlbel

5:42 PM

@NLed I am not a lawyer, but no. The content is yours, this chatroom just helped you draw the lines.

@NLed Your Uni should educate itself then.

David Carlisle

@NLed no can't actually you can only edit chat comments fr a small period then the record is frozen.

NLed

They use turnitin to check for plagiarism

Qrrbrbirlbel

@NLed It's not plagiarism. You do have a source for values, don't you?

NLed

Yeah I know, but turnitin doesn't distinguish between what is and what isn't. It just checks the internet for similarity

www.turnitin.com

@Qrrbrbirlbel Yep

egreg

@NLed We can ask @JosephWright to remove the data; but I don't think it's necessary.

NLed

5:52 PM

@egreg It's fine, if they did mention it to me i'll point out that this account is mine etc

@egreg Just thought i'd avoid the hassle

Qrrbrbirlbel

@NLed Sure, but a) I don't think it checks the chat logs if TeX.se b) "they" will do have to provide proof that not you but the chatroom did create the contents of your table.

@NLed And this is the first mention of the whole content, so you did provide it to the room.

NLed

@Qrrbrbirlbel I doubt they will really bother with that

nevermind me, it's work stress ... getting nervous everywhere !! Dissertation due next week.

Qrrbrbirlbel

Just a "some well-known, often-used software found it on some webpage" is not very solid, isn't it.

NLed

@Qrrbrbirlbel turnitin is use worldwide and very common in the UK (AFAIK)

check out their website

Qrrbrbirlbel

@NLed And? Who cares what it founds? That doesn't mean you copied it from there.

kan

5:55 PM

@NLed Luck, NLed. Do not worry about these things. IMO, you can drop in and ask questions about TeX! (And, you seem to be worried about the "marking down if I ask": let me assure you that nobody downvotes here! We downvote spam, that is all!

Marco Daniel

@Qrrbrbirlbel This is also possible. Thanks

NLed

@kan I agree with how friendly this stackexchange is, compard to stackoverflow or arqade, but I do see downvotes from time-to-time, or just closing down because of duplicates that aren't really exact duplicates (more like specific questions)

@Qrrbrbirlbel true

kan

@NLed No, we never close questions that are not duplicates. (We might, if it is some abstract duplicate: eg: how do I find a symbol etc. But, do note that, when we do so, we ensure that the user has resolved his difficulty, by explicitly helping him get over the difficulty in comments and further, asking for the explicit permission of the OP that his/her question has been answered by the question in the link.)

NLed

I do remember my question closed after being answered, true .. but why close it if the answer is there ? why not leave it open ?

@kan Oh and thanks for wishing me good luck :D I need it !

kan

@NLed Cleanliness of the site, mostly. Eg. Room for non-answers to be posted, like spam; and then, makes it easy to search. Just one question about how to find a symbol should do. Although the symbol one is after might be different, we really do not intend to feed the answer: it is more like a basic skill the OP must learn while using LaTeX.

egreg

6:04 PM

@NLed A duplicate question is marked because so one can find the main information just in one page.

David Carlisle

@NLed sometimes we answer anyway (because it's easier than searching for a duplicate) but once a duplicate is pointed out close as that focusses future searches on the original. If the answer on the new question is particularly good it can be moved to the original

kan

So, we instead point out a tutorial about how to fish.

NLed

@egreg @DavidCarlisle @kan ahh I see ... fair enough

Thanks a bunch guys :)

egreg

@NLed As I comment frequently, closing as duplicate is not a judgment on the question (or the questioner), just a way to keep information as tight as possible.

7

Bugbusters

6:42 PM

how to throw an error such that the compilation in LaTeX gets terminated?

\def\filter#1,#2\relax#3{%
	\if t#2
		trunc(#3:#1)%
	\else	\if r#2
		round(#3:#1)%
	\else	\if c#2
		clip(#3)%
	\else
		\errmessage{Syntax error in invoking const.}%
	\fi\fi\fi}

the complete code:

\documentclass{beamer}
\usepackage{multido}
\usepackage{pstricks}
\usepackage[nomessages]{fp}

\def\filter#1,#2\relax#3{%
	\if t#2
		trunc(#3:#1)%
	\else	\if r#2
		round(#3:#1)%
	\else	\if c#2
		clip(#3)%
	\else
		\errmessage{Syntax error in invoking const.}%
	\fi\fi\fi}

% \pstVerb concatenator
\def\LoadConstants{}

% Constant declarator invoked in the preamble
\newcommand\const[3][]{%
	\if\relax\detokenize{#1}\relax
		\edef\temporary{#3}%
	\else
		\edef\temporary{\filter#1\relax{#3}}%
	\fi
	\expandafter\FPeval\csname#2\expandafter\endcsname

Qrrbrbirlbel

7:13 PM

@Bugbusters \bye or \@@end?

Bugbusters

@Qrrbrbirlbel I don't know. Just throw an exception and the compilation gets terminated/aborted.

Peter Grill

7:29 PM

@Bugbusters There is \PackageError but I just use \typeout to issue an message, and then \QUITHERE (which is NOT defined).

Joseph Wright

@Paulo Only siunitx to go now in the BitBucket to GitHub move

Speravir

8:03 PM

@egreg Reading Install font on Mac I guess we talked about once, but I cannot remember: What does the -H switch do and why I should not add this (“it is not necessary”) to Manual font installation? I cannot help the OP anymore. Or is there a force option for updmap-sys?

egreg

@Bugbusters \@@end will terminate the job, but if you say \errmessage{something}\@@end the \@@end will be executed only after the user has hit Return. Since you're in the preamble, there's no risk that \@@end (remember to use \makeatletter and \makeatother around the code, or write \csname @@end\endcsname) will refuse to terminate. But this seems quite a drastic measure.

David Carlisle

@Bugbusters As I said in comments in the question you can't use \typeout or \PackageError unless you completely restructure the code not to use edef. Just use \ERRRORHERE or any other undefined command and you'ld get an undefined command error

egreg

@Bugbusters You should use \filter before doing the \edef. Instead of producing tokens, define a temporary macro that will be used in the \edef.

Speravir

8:29 PM

@MarcoDaniel ~~In your answer for lilypond and arara the links from first revision are broken.~~ OK, repaired.

Marco Daniel

@Speravir Thanks

Speravir

@MarcoDaniel No problem. Did you realize this through my message? Because your fix was fast enough to be in grace period - and to make the edit above possible in this shorter grace period here in chat.

Marco Daniel

@Speravir I noticed this. But it was helpful ;-)

Speravir

@MarcoDaniel OK.

egreg

9:05 PM

@Bugbusters As I replied in my comment only the user can abort the TeX run, by hitting X when an error message appears. Even if TeX is run with \batchmode on, it won't stop at errors other than in well determined situations (not finding a file for input, or "That makes 100 errors" and some other fatal errors). But there's no way to declare an error as fatal.

Joseph Wright

@egreg \endinput

Marco Daniel

@PauloCereda: New request in comment: tex.stackexchange.com/questions/111055/…

egreg

@JosephWright Not really: this doesn't terminate the run, even if found in the main file.

@JosephWright You use \tex_endinput:D in expl3 packages to abort loading the package, not the TeX run.

David Carlisle

9:29 PM

@AndrewStacey :-)

topskip

egreg

@topskip Nice palindrome!

Qrrbrbirlbel

@egreg @topskip 17,7,71 would be a palindrome …

egreg

Great news! @DavidCarlisle has become a master of \tikzmark!

David Carlisle

@egreg I can cut and paste at least. (I had to find a question that drew a line between two nodes, didn't notice until after I'd made the image it actually made arrows:-)

egreg

9:40 PM

@Qrrbrbirlbel I don't see the comma, it's a British/American thing. Well, I see it, but I pretend there isn't.

David Carlisle

@Qrrbrbirlbel No we are mathematicians not artists, palindrome base 10 is a property of the number not a property of its printed form.

Speravir

@egreg To cite @AndrewStacey (tikzmark documentation): “I would also like to mention David Carlisle whose knowledge of TikZ continues to astound us all.” ;-)

David Carlisle

@PeterGrill a tikz question and you missed the chance:-)

Peter Grill

@DavidCarlisle Are you referring to the table one where you said your solution "could be prettier"?

Oh I see the diagonal one. Yeah, no MWE provided so thought I'd wait..

@DavidCarlisle Might be a good idea to point out that two runs are required.

David Carlisle

9:58 PM

@PeterGrill s'pose I could. I was too exhausted from the effort of producing a tikz answer to document it as well..

Peter Grill

@DavidCarlisle :-)

David Carlisle

@PeterGrill done (hope that's true)

Peter Grill

@DavidCarlisle Yep, that is the case (assuming it works - I haven't QA'd your code)

David Carlisle

@PeterGrill bug free by definition.

Peter Grill

@DavidCarlisle Huh? I thought it was axiomatic that a David Carlisle solution is bug free?

David Carlisle

10:04 PM

@PeterGrill If it's axiomatic in one world it's by definition in the meta world, so it just depends on your point of view.

Peter Grill

Mathy Question (before I post on Math.SE): For a "relation defined from set A to set B", some definitions say A is the domain. But it is possible to define a relation from A to B, where not all elements of A correspond to the first coordinate. So what is domain of the relation?

Basically, there is "codomain" and "range" which clarifies these issue about set B. Is there an equivalent term that clarifies these for A? Not sure if "pre-image" is it?

egreg

@PeterGrill The domain of a relation is what you want it to be.

Peter Grill

@egreg So one is free to say domain is A, or to select a proper subset of A?

egreg

@PeterGrill Terminology in this field is all but established.

Peter Grill

@egreg So, are you saying that "domain of a relation" is not strictly defined, but "domain of a function" is.

egreg

10:12 PM

@PeterGrill No. For instance, "partial functions" are common when you talk about recursive functions: a recursive function from N to N might not be defined for all natural numbers.

So somebody talks about the function having domain N and definition set "N less some elements"; others may use different terms.

The only way out is explaining beforehand what meaning you assign to your terms.

Peter Grill

@egreg When you say "No" are you agreeing with my comment: ' that "domain of a relation" is not strictly defined, but "domain of a function" is.', or disagreeing?

egreg

@PeterGrill Disagreeing.

Peter Grill

So then there should be terms for the pre-image as the terms "codomain" and "range" define things precisely for the image.

egreg

@PeterGrill You find different meanings also for "codomain". Somebody uses it to mean what others call "range".

"Source" and "target" are more neutral. Yes, also these are used.

Peter Grill

@egreg Haven't seen "source" and "target: used, but does seem like a better term to use.

egreg

10:19 PM

@PeterGrill You don't do category theory. ;-)

Peter Grill

@egreg No, haven't gotten there, yet....

David Carlisle

@PeterGrill you'd like it: lots of opportunities for tikz arrow diagrams

Peter Grill

@DavidCarlisle Hmmm. So when I get there I'll have to create two accounts. Second one to ask the questions so I can answer... :-)

texenthusiast

10:36 PM

@DavidCarlisle need to change title or not tex.stackexchange.com/questions/110983/tikz-matrix-decoration/… by OP

Peter Grill

@DavidCarlisle If you don't want the arrows on the lines replace "<->" options to the \draw with "-".

David Carlisle

@PeterGrill yes I figured that out, but I didn't notice them till it was all posted, anyway OP is happy:-)

Peter Grill

@DavidCarlisle : Yep, until he notices the arrows. :-)

texenthusiast

@JosephWright In uktug latex intermediate slides some sections are missing is it in process ?

Paulo Cereda

Meow.

David Carlisle

10:47 PM

@PauloCereda see the arara qn?

Paulo Cereda

@DavidCarlisle Nope. Where?

David Carlisle

@PauloCereda MSDN, where do you think:-)

Paulo Cereda

@DavidCarlisle LOL

Peter Grill

@MarcoDaniel: Had a comment/suggestion/feature request for your awesome `mdframed` packge: Currently nested `mdframed` environments inherit the proprieties of the parent. This is useful in most situation, but there are cases where this is not desired. Since there are numerous settings, I'd prefer to not have to specify everyone. So, perhaps when defining there could be a setting where we start with all the default settings:

`\begin{mdframed}[Default Settings, backgroundcolor=yellow]`

for instance.

Qrrbrbirlbel

@PeterGrill Would be useful for TikZ too, when I see how often users nest TikZ picutres ...

Peter Grill

10:50 PM

@Qrrbrbirlbel I haven't encountered that in my usage, but yep makes sense.

Paulo Cereda

@DavidCarlisle: I went to a city nearby, named *Arara*quara. :)

egreg

@PauloCereda Do local people wear very colored shirts?

Paulo Cereda

@egreg Sadly, no. :)

David Carlisle

@PauloCereda Perhaps the city council will sponsor Arara development...

Paulo Cereda

@DavidCarlisle There's another city nearby named Araras. :)

Marco Daniel

11:14 PM

@PeterGrill Accepted request ;-)

Peter Grill

@MarcoDaniel Thanks.... There might be a better UI, but as long as that result can be achieved. Oh, and any reason to leave the You have only a width of 3cm... message in the output -- not sure what I am supposed to do -- 3cm is adequate for what I need in this case...

Marco Daniel

@PeterGrill Today I changed something: github.com/marcodaniel/mdframed/commits/master -- I think before I upload the new version I will change something more. Inspired by the package tcolorbox I can imagine something like framedfloat or framedminted....

@PauloCereda: An arara question needs your attention. Did you notice the lilypond-rule. As I added the new file extension I noticed that the regular expression of the documentation fails. I had to use: ^(\s)*%\s+ instead of ^(\\s)*%\\s+

Paulo Cereda

@MarcoDaniel I was aware of that, the documentation is misleading. :( My bad.

@MarcoDaniel: trello.com/card/…

Marco Daniel

@PauloCereda Nothing bad -- It's a feature request to test the attention of the reader.

@PauloCereda Indeed.

Paulo Cereda

@MarcoDaniel Yep. :) You know I'm lazy to update stuff. :) BTW, I'll consider a project-based araraconfig.yaml in the current directory, let's see how it goes. :)

Marco Daniel

11:24 PM

@PauloCereda Interesting.

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