TeX, LaTeX and Friends

12:00 AM

@Shalvenay Use this as your model: tex.stackexchange.com/q/116534/2693 there it's clear that you can definitely use a macro for the post-break continuation character, so the only bit to figure out is how to make it conditional.

Shalvenay

12:14 AM

@AlanMunn yeah -- that's what I'm really not clear on

Alan Munn

@Shalvenay Yes, I understand. But if you ask your question using a minimal example like this then you can make it quite clear to people what you want to do. I'm sure there's someone who might be willing to dig into the listings code to figure out a solution.

Shalvenay

@AlanMunn yeah

BAYMAX

5:04 AM

Hi

I am using texmaker and when I click on run to generate the pdf file then it flashes an error message - pdflatex ~ synctex=1

any help!

Joseph Wright

7:36 AM

@AlanMunn New avatar?

Johannes_B

@JosephWright tex.stackexchange.com/questions/376673/… question deleted, tex.stackexchange.com/questions/376607/what-kind-of-package user deleted. I feel bad

Joseph Wright

@Johannes_B It happens: on a forum you try to answer every question, that's not quite the same here

Johannes_B

@JosephWright The questions have been closed too quickly, imho.

CarLaTeX

8:00 AM

Today an OP's accepted an answer of mine posted on May, 17th :):):)

Christian Hupfer

@CarLaTeX I think I had an acceptance more than one year later after I posted the answer

CarLaTeX

@ChristianHupfer Better late than never! :)

Christian Hupfer

@CarLaTeX Yes, where 'never' is often the case, however ;-)

CarLaTeX

@ChristianHupfer Unfortunately...

Christian Hupfer

@Johannes_B: One of the pretty unique 'thesis.cls' questions again: tex.stackexchange.com/questions/376664/… ;-)

Joseph Wright

8:15 AM

@PauloCereda github.com/latex3/l3build

Johannes_B

8:33 AM

@ChristianHupfer This is lowercase thesis.cls, not Thesis.cls. Alas, i don't have hope.

Christian Hupfer

@Johannes_B Rubbish is rubbish, regardless whether it is written with lowercase or uppercase ;-)

@PauloCereda: Which reminds me of "Upperclass twit of the year" competition ;-)

Johannes_B

@ChristianHupfer True that.

Christian Hupfer

@Johannes_B: And here is one of your other favourite classes: res.cls ;-)

1

Q: Internal hyperref links do not work with res.cls

I am using the popular res.cls for my resume (CTAN Link) I would like to put internal links in my file. However, the following does not successfully place the internal links: \documentclass{res} \usepackage{hyperref} \begin{document} \section{Section 1} \label{sec:part1} \hyperref[sec:part...

Johannes_B

@ChristianHupfer Please do not make the template hunter angry on sununday. I am going to drink too much coffee which almost makes my heart explode.

COFFEE!

David Carlisle

9:16 AM

@JosephWright you could do if you want, or I could but your probably have it in your head what you need to pass down...

Joseph Wright

@DavidCarlisle OK, I'll sort in a second (just doing the l3build split)

@DavidCarlisle Do we call it decode or decodearray?

David Carlisle

@JosephWright decodeararray I think as it's what it was before and "decode" is rather a generic name for a rather specific thing

Joseph Wright

@DavidCarlisle Cool

David Carlisle

@JosephWright still fighting travis ci :-)

Joseph Wright

@DavidCarlisle :)

@DavidCarlisle Set up a VM!

@DavidCarlisle Updated graphics stack off to CTAN

SBM

9:32 AM

hello

Johannes_B

@SBM Hi

David Carlisle

@JosephWright don't think that would help I have all the build working it's just deploying back to the gh-pages branch of another repo, which also works but the doc says "Deploying to GitHub Pages uses git push --force to overwrite the history on the target branch" which is fine for my test repo but means if I update the one document I'm building via travis CI I wipe the entire website, so I think I need to make the install git clone the project site update teh document and then push back

@JosephWright thanks

Joseph Wright

@DavidCarlisle Ah

@DavidCarlisle Not a problem: I'll add support for the same concept to L3 soon

David Carlisle

@JosephWright I'm trying to understand why they only offer this --force option, reading the git documentation for that more or less just says make sure that to really want to do that:-)

Joseph Wright

@DavidCarlisle Yup: that's needed for example when you mess stuff up entirely and need to say 'right, everyone else forget about the history, I'm changing it' (I did that when we moved from svn-mirror to latex3 for the Git view of LaTeX3, as the old one was read-only and the new one isn't, and is done using an entirely different system)

David Carlisle

9:51 AM

@JosephWright but it seems a dangerous thing to do on every edit, which is what the built in travis ci deploy to gh_pages thing does

Joseph Wright

10:04 AM

@DavidCarlisle Er, yes

Paulo Cereda

10:19 AM

@JosephWright woo

@AlanMunn Great job, Alan! I will add texindy to the official rule set. :)

@AlanMunn: in other news, what happened to your avatar? :)

Schweinebacke

11:21 AM

@Johannes_B: I sometimes tell new users, who currently use a standard class, how to use scrlayer-scrpage not only because I now scrlayer-scrpage better but mainly because they could later switch to a KOMA-Script class. That's not fair, because fancyhdr is a good package. And I should tell them, how to use either fancyhdr or scrlayer-scrpage.

I would prefer if fancyhdr would have better support for the KOMA-Script classes so that I never again have to say: "Yes, you can use this, but note that it could break features of the class you are using." Maybe someone could write a fancyhdr interface to scrlayer that does support also all page head/foot features (and the font element feature) of the KOMA-Script classes.

Christian Hupfer

@Schweinebacke One could argue as well that the KOMA classes should be rewritten/changed to be usable with fancyhdr ;-)

Schweinebacke

@ChristianHupfer This would mean to remove features like \setkomafont{pagenumber}{…} and options like headsepline from KOMA-Script or to patch a loaded fancyhdr a lot which could break after a update of the package. Mostly making a package compatible with a class is more easy.

The first releases of KOMA-Script where compatible with fancyhdr only because they did not have had such features. scrpage (the predecessor of scrpage2 the predecessor of scrlayer-scrpage) has been designed and implemented only because of such incompatibilities of fancyhdr.

BTW: KOMA-Script classes are usable with fancyhdr. A lot of users use them together. But it's not a perfect combination. At least not for new users. Experts are able to use fancyhdr with support for all KOMA-Script features. But they have to do it on their own.

Johannes_B

11:40 AM

@Schweinebacke There is also titleps ;-)

@Schweinebacke Do you want to rewrite that wikiboooks page? In short mentioning all three packages?

Schweinebacke

@Johannes_B And some more. BTW: The very first KOMA-Script releases had (one or even some) additional page style package(s). Each provided only one page style alternative. scrpage was also an answer to create one new package per each page style question.

@Johannes_B I don't like to write wikibook pages. I'm not good in writing English manuals. And I need too much time for them. And if I'd do, I'd feel responsible for the result for ages. No, thank you.

Johannes_B

@Schweinebacke The german wikibook? ;-)

Schweinebacke

@Johannes_B The German wikibook is a mess. And same problem: It need a lot of time and I would feel responsible but cannot fulfill my own pretension (don't know whether or not this is the correct term, in German: kann meinen eigenen Ansprüchen nicht gerecht werden bzw. sie nicht erfüllen).

CarLaTeX

@ChristianHupfer There are worse things than unaccepted answers: tex.stackexchange.com/q/367858/101651 :):):)

Ulrike Fischer

@ChristianHupfer Oh no. Try to being compatible with everything is as bad as trying to be please everyone. It leads to fat, complicated and at the end unmanagable code. Due to the history (scrpage, scrpage2, scrlayer etc) it is already complicated enough. I don't want more "if then" cases.

Christian Hupfer

11:53 AM

@CarLaTeX accepted answers ;-)

CarLaTeX

@ChristianHupfer LOL

Christian Hupfer

@UlrikeFischer Well, I don't try to use best of both worlds then. One should choose one approach and drop the other one, each on a personal decision

Schweinebacke

@UlrikeFischer Have you seen the code in scrkernel-tocstyle.dtx? Extremely optimized code to avoid having duplicated lines of code. But I you'd try to find out what the result would be or where to change or add something …

Johannes_B

12:08 PM

@Schweinebacke I know what you mean. I feel responsible as wll, so i do some edits every once in a while. I even extended the spanish wikibook on title pages without knowing the language. :-)

Ulrike Fischer

@ChristianHupfer Sorry I don't understand what you mean here ;-) I don't have to drop one of KOMA and fancyhdr. They work together. But I want don't want KOMA to e.g. silently add \usekomafont-commands to fancyhdr code. It is quite enough if it documents the "API": \setkomafont{pagenumber} will afffect elements that uses \usekomafont. Then I can add them myself if I want.

Johannes_B

@Schweinebacke The code of the KOMA classes got too complicated for me. I get goose bumps seeing some answers that implement what a user wants in a KOMA-clean way. If i canot figure out what is happening, what does an unexperienced user think?

Christian Hupfer

@UlrikeFischer No one is forced to use both, however

Ulrike Fischer

@ChristianHupfer No, but what has this to do with your remark that "One could argue as well that the KOMA classes should be rewritten/changed to be usable with fancyhdr "?

Christian Hupfer

12:23 PM

@UlrikeFischer It was a remark about @Schweinebacke's complaints that fancyhdr is not (fully) supporting KOMA ... It's justified to say that fancyhdr should be changed as is equally justified to change/adapt KOMA

Schweinebacke

@ChristianHupfer KOMA-Script has been adapted in some aspect: It has it's own page style package(s).

Ulrike Fischer

@ChristianHupfer No sorry the relation is not symmetric. The class is the frame work, it offers tools and API's which users and package can use or not. So e.g. for headerlines KOMA could tell package authors "the option set this boolean and this values, and you can use them if you want". But it should not patch packages or package code.

Alan Munn

@JosephWright I got bored. :). It may go back to the other one at some point.

@PauloCereda Thanks, but I assume the rule I wrote isn't general enough for inclusion in the official rule set. But I don't know texindy at all so I don't know what all the parameters do.

Christian Hupfer

12:43 PM

@UlrikeFischer I've another opinion, but as I said: If you don't like fancyhdr, don't use it, if you don't like KOMA, don't use, if you want to use both, live with the consequences. It's a personal decision

Johannes_B

@ChristianHupfer @UlrikeFischer @Schweinebacke I don't understand why fancyhdr should support KOMA at all. Does it claim to work with all classes? Should it work with memoir? Or should memoir work with scrlayer-scrpage? DIfferent things for different purposes.

Christian Hupfer

@Johannes_B Exactly

Johannes_B

@ChristianHupfer A general new user doesn't know about the differences. They just use what google presents first.

Schweinebacke

@Johannes_B That's correct. But it is also the reason why it is not enough to explain how to use fancyhdr (or titleps or scrlayer or scrlayer-scrpage) to describe how to change page styles.

Johannes_B

By the way, i never noticed the fancyhdr documentation has a completely different title and deals with floats as well.

@Schweinebacke And that is the point where a wikibook gets tricky. First of all, before we deal about page styles, you need to know what document class you are using. Memoir? Go to page 8. KOMA? Go to page 12? standard? you can choose between ABC on page 15, XYZ on page 18 or go to page 12 and use the method that is suited for KOMA. if you use titlesec however, forget about page 12 and use XYZ fro page 18.

Schweinebacke

12:50 PM

@UlrikeFischer Agree. And this is the reason why KOMA-Script classes only warn and one of the reasons why scrhack is not integrated into the classes.

Christian Hupfer

@Johannes_B They are trapped and are lost forever -- abandon all hope ;-)

Johannes_B

@Schweinebacke I know a class that has \PreventPackageFromLoading to avoid loading fancyhdr

Schweinebacke

@Johannes_B scrlayer – the basic package behind scrlayer-scrpage does also deal with floats. And the \iffloatpage in fancyhdr is a very simple \if@fcolmade #1\else #2\fi (similar for the other switches). The user has to use it himself to deal with float pages. In scrlayer-scrpage a user also could add float page layers and non-float page layers to the page styles. But fancyhdr bundle has also package extramarks. But AFAIK you can use this also with scrlayer-scrpage.

@Johannes_B Yes. But I don't think, that KOMA-Script classes should do so. Maybe even the warning should be less strong since fancyhdr has been changed to not longer use \it.

Johannes_B

@Schweinebacke Agreed.

Schweinebacke

1:05 PM

@Johannes_B BTW: The ncctool has nccfancyhdr.sty. But I don't know if some should use them, e.g., if he/she uses, e.g., nccbook.cls. So a wikibook can never keep in mind to explain every best combination.

Johannes_B

@Schweinebacke It could be worth mentioning thesis.cls and Thesis.cls <- @ChristianHupfer

;-)

Christian Hupfer

@Johannes_B You should see my thesis.cls I've used for my diploma and PhD thesis ;-)

\NeedsTeXFormat{LaTeX2e}[1995/12/01]
\ProvidesClass{thesis}
\LoadClass{book}
\endinput

Ulrike Fischer

@ChristianHupfer I always have to live with the consequences of my decisions. I like fancyhdr as it is easy and fast to use, but I also like KOMA as it has various useful interfaces -- e.g. to change the fonts of the sectioning commands.

Johannes_B

@ChristianHupfer By the way, i still get occasional visitors for CreativeCv.

Alan Munn

@ChristianHupfer That's @PauloCereda 's entire thesis.

Johannes_B

1:16 PM

1

Q: Classicthesis + texlive fresh install

I have been using TeX Live on Ubuntu 14.04 and the package classicthesis with no problems until now. I have recently reinstalled Ubuntu 14.04 and TeX Live with it. I followed the guide on how to install "vanilla" TeX Live (very good guide). But this very simple piece of code had a problem \doc...

texlive installing classicthesis

Close as unclear?

Christian Hupfer

@AlanMunn I wasn't aware that @PauloCereda is writing a thesis. I thought he is writing a book about procrastination ;-)

Paulo Cereda

@AlanMunn I will have to rewrite it anyways because the v4 format is more robust and less error-prone, don't worry. Also, I do believe Nicola had a plan for a texindy rule in the past.

@AlanMunn oi

@ChristianHupfer oi

Alan Munn

@PauloCereda Ok. I'll leave it to the experts. The project level config files for latexmk are nice to know about though too.

@PauloCereda :)

Christian Hupfer

@PauloCereda <3

Paulo Cereda

@AlanMunn er arara

@ChristianHupfer <3

Alan Munn

1:25 PM

@PauloCereda I will use all tools at my disposal. :) I usually use latexmk for final runs of documents.

Paulo Cereda

@AlanMunn Oh I think you meant the new v4 feature, the project level config. My bad. :)

@AlanMunn: what happened to your avatar?

Alan Munn

@PauloCereda No I was referring to Herb's answer.

Paulo Cereda

@AlanMunn oh sorry, I made a confusion.

Alan Munn

@PauloCereda I got bored.

Ulrike Fischer

@Schweinebacke There should options for package/class writers to silence such warnings. When I load the fancyhdr package I know what I'm doing. \expandafter\let\csname fancyhdr.sty-@before\endcsname\relax works but as it is not documented one can't be sure if the command name will stay in future koma versions.

Paulo Cereda

1:30 PM

@AlanMunn ooh

@AlanMunn: speaking of boredom, one of my favourite movie lines is from Al Gore in a Futurama film: Finally, I get to save the Earth with deadly lasers instead of deadly slide shows.

Alan Munn

@PauloCereda Where's Al Gore when we need him?

Paulo Cereda

@AlanMunn Hunting manbearpig, I believe. :)

(Another South Park reference)

Alan Munn

@PauloCereda whooooosh

Paulo Cereda

@AlanMunn LOL

Schweinebacke

@UlrikeFischer Such options would become part of most templates and would make the warnings useless.

Paulo Cereda

1:32 PM

@AlanMunn EXCELSIOR

Alan Munn

@PauloCereda Watch it. Pretty soon my 'whoosh'es will have a certain southern Italian flavour...

@PauloCereda Until I run out of battery.

Paulo Cereda

@AlanMunn ooh

Joseph Wright

@AlanMunn :)

Paulo Cereda

@JosephWright now I can do PR's directly to the new repo, right? :)

Joseph Wright

@PauloCereda Yup

@PauloCereda I expect to follow a slightly more 'modern' workflow with this new repo

Paulo Cereda

1:42 PM

@JosephWright I wonder what will be outcome of the meeting regarding this new modern vibe :)

Ulrike Fischer

@Schweinebacke templates can silence the messages anyway. Either with the low-level code above or with the silence package. It wouldn't get worse if KOMA would offer a command to filter them.

Schweinebacke

@UlrikeFischer For most template doctors it is big difference whether there would be a documented options or command or whether they have to find out a more tricky workaround.

Ulrike Fischer

2:01 PM

@Schweinebacke These template doctors don't read the documentation ;-).

Paulo Cereda

@UlrikeFischer A template a day keeps the doctor away? :)

Paulo Cereda

2:14 PM

@AlanMunn: what about that, I was not crazy! github.com/cereda/arara/blob/master/rules/texindy.yaml

@AlanMunn: Nicola is the reason why arara is still alive today. :)

Alan Munn

@PauloCereda So this is an undocumented feature? :)

Paulo Cereda

@AlanMunn It's a new v4 rule, I blame the lack of documentation. :)

Alan Munn

@PauloCereda And as I said, mine is way too simple. But I guess it will work for the OP.

Paulo Cereda

@AlanMunn Sure. :)

David Carlisle

@PauloCereda reformers will be locked up in chains and left in the tower

Joseph Wright

2:25 PM

@PauloCereda, @DavidCarlisle opensource.guide makes interesting reading (got pointed there from GitHub for various reasons ...) :)

David Carlisle

@JosephWright do we follow any of the guidelines:-) ?

Joseph Wright

@DavidCarlisle Some of them ;)

David Carlisle

@JosephWright yeh just now, got travis ci to update an html file without wiping the entire directory

Joseph Wright

@DavidCarlisle Interesting that some of them are things we've done for years, some reflect differences in thinking between some of us, etc.

@DavidCarlisle Good :)

Paulo Cereda

@DavidCarlisle oh

David Carlisle

2:31 PM

@JosephWright I realise now why it uses --force in its default deploy rule, it does not check out the existing repo at all, its model of "deploy to gh pages" is start with git init, make some files, force push whatever you made. That seems not particularly useful, but it's what it does. However getting the script to clone, then push is easy enough but you have to handle more of the authorisation stuff "by hand"

Ulrike Fischer

@PauloCereda H. I don't think that @Johannes_B would agree. More "a template a days calls the doctor to stay" ;-)

Paulo Cereda

@UlrikeFischer ooh :)

Johannes_B

@UlrikeFischer Yes, that's true :-)

Paulo Cereda

3:23 PM

@JosephWright PR in progress. :)

David Carlisle

3:34 PM

@PauloCereda s/PR/Thesis/

Paulo Cereda

@DavidCarlisle that too

David Carlisle

@PauloCereda really? wow? I hope you never finish that, if you did what would we chat about?

Paulo Cereda

@DavidCarlisle ooh a paradox

Stefan Kottwitz

4:17 PM

@PauloCereda I ordered a Sony DPT-RP1/B Digital Paper for reading your thesis.

@PauloCereda They said: "Delivery estimate: We need a little more time to provide you with a good estimate. We'll notify you via e-mail as soon as we have an estimated delivery date."

But it's worth waiting for. :-)

Paulo Cereda

@StefanKottwitz ooh

Stefan Kottwitz

@PauloCereda Proof:

Paulo Cereda

@StefanKottwitz ooh :)

@StefanKottwitz: speaking of purchases, I need to poke you about TUG 2018. :) Ideas, ideas. :)

Stefan Kottwitz

@PauloCereda That's my solution to finally read all letter sized two-column tugboat journals digitally :-) I can't wait to get it.

Paulo Cereda

@StefanKottwitz :)

Stefan Kottwitz

4:25 PM

@PauloCereda I started already with long term ideas for TUG 2018. But don't hesitate to poke me about further ideas!

David Carlisle

@JosephWright I wonder when we last uploaded grfguide.tex :(

Stefan Kottwitz

@PauloCereda I will be in Miami during July. Want to visit me? It's not as far away as Europe. ;-)

Joseph Wright

@DavidCarlisle Yes, thought it was the recent checkin but have literally just run the build script with the current release of l3build and found it is missing there too

Paulo Cereda

@StefanKottwitz I cannot enter the US.

@StefanKottwitz Cool!

David Carlisle

@JosephWright ctan doesn't seem to have the file at all so I'd guess it's never been in since we switched to l3build and/or latex-graphics

Johannes_B

4:33 PM

@StefanKottwitz By the way, the SELECT ALL button on LC jumps to the top of the page. If you can reproduce it, can you have a look at it when you got time?

Joseph Wright

@DavidCarlisle Could well be

@DavidCarlisle Will be fixed by the end of my train journey later today

David Carlisle

@JosephWright I tihink I'm going to have to install texlive in my travis setup (I suppose it's not that much slower than apt-getting the ubuntu one anyway) it seems to come with texlive 2009 but I want the stuff to fix the epoch so pdf shows no diff if all I have done is tinker with the travis.yml file. so need texlive 2016 or 17 I think

Joseph Wright

@DavidCarlisle Yes, sounds sensible

Stefan Kottwitz

@Johannes_B It works for me, I tested on latex.org/forum/viewtopic.php?f=46&t=29874

Joseph Wright

@DavidCarlisle With caching it's not an issue

Johannes_B

4:36 PM

@StefanKottwitz Probably my outdated system then. Sorry for the noise :-)

David Carlisle

@JosephWright The scary thing is it would work and be fast enough to appear sensible but building an entire clean VM from scratch and installling dozens of software packages just so I can convert one xml file to one html (or pdf) file and check it in seems scarily over-engineered but perhaps I'm just not used to a "modern workflow" :-)

Stefan Kottwitz

@PauloCereda I searched for Miami TeX.SX users, guess who I found

stackexchange.com/users/8618572/miami-luxury-homes?tab=accounts aka tex.stackexchange.com/users/107831/…

Paulo Cereda

@StefanKottwitz LOL

Joseph Wright

@DavidCarlisle Probably, but Travis-CI is mainly for testing

@DavidCarlisle Have you tried the Trusty images?

David Carlisle

4:58 PM

@JosephWright I thought the banner meant I was using them already, but I see I'm using "precise" do you know what trusty has for tex?

Paulo Cereda

@DavidCarlisle trusty packages? :)

David Carlisle

@PauloCereda stick to windows, this linux talk is beyond you

Paulo Cereda

@DavidCarlisle oh :(

Joseph Wright

@DavidCarlisle packages.ubuntu.com/trusty/tex suggests 2013

David Carlisle

@JosephWright so I won't bother then, simpler to steal your yaml for caching tl2017 :-)

Paulo Cereda

5:04 PM

@DavidCarlisle ooh

Joseph Wright

@DavidCarlisle Sounds like a plan

@DavidCarlisle I think everyone using Travis-CI for TeX testing is going to do the same

@DavidCarlisle, @PauloCereda I'm thinking for l3build using a slightly more 'web 2' workflow: I'm really going to try to open issues for most changes

Paulo Cereda

@JosephWright web 2? :) I am lost. :)

Joseph Wright

@PauloCereda Ok, 'Agile'

Paulo Cereda

@JosephWright oh no, jargon. :)

Joseph Wright

@PauloCereda Don't worry, I don't understand any of it

Paulo Cereda

5:08 PM

@JosephWright Who does? :)

David Carlisle

7 mins ago, by David Carlisle

@PauloCereda stick to windows, this linux talk is beyond you

Paulo Cereda

@DavidCarlisle /sob

David Carlisle

@PauloCereda glad to be of assistance

Stefan Kottwitz

6:16 PM

@DavidCarlisle @Moriambar @barbarabeeton So you are ready for the reverse double backslash bug?

0

A: LaTex: Making a 3x2 panel with arrows in between

I used this to make pdf files from 8 images I had. I think with little bit modification this will work for you. My latex doesnt have arrow that you're looking for. So you have to add them. \\documentclass{article} \\usepackage[utf8]{inputenc} \\usepackage{graphicx} \\usepackage{subcaption} \\set...

1

Q: MathJax not rendering some equations properly on Github pages

I've configured Mathjax on my Github pages site and it can render some equations properly but not others. It can render properly the following equations: \\[ \frac{1}{n^{2}} \\] \\[ J(\theta) = \frac{1}{2m}[\sum_{i=1}^m(h_\theta (x^{(i)}) - y^{(i)})^2 + \lambda\sum_{j=1}^n\theta^2_j] \\] But...

latex github-pages mathjax

Found on SO though.

barbara beeton

@StefanKottwitz -- oh, nasty word, nasty word. i've seen that before, actually. the processor that i need to use in preparing ams web pages, in particular for the faq, does exactly this in the initial posting. (if the content is corrected, or something added, it isn't repeated, so if it's caught right away, the posting will be correct. but if it's not, ... i'm not registered on so. who here is?

Stefan Kottwitz

@barbarabeeton trying a sql data query on SO looking for this timed out :-o

My first intention was to verify if SO was affected by the same issue, so I found the other issue

barbara beeton

@StefanKottwitz -- definitely depressing. @JosephWright -- did you catch this? the powers really need to look into how backslashes are being handled.

Moriambar

6:33 PM

@StefanKottwitz ok. Lately I've not been here 'cause I tried writing a bit. That did not go well

@barbarabeeton I fear the worse

barbara beeton

@StefanKottwitz -- i think the second item you link to could have been correct when it was answered peter krautzberger does know tex, and he is to mathjax equivalent to what @DavidCarlisle is to latex.

@Moriambar -- so do i, but i'm trying to ignore that right now. i'm still trying to rewrite my tug2017 paper so that it can go into the proceedings issue of tugboat; you will observe that i'm woefully behind schedule ...

Moriambar

@barbarabeeton I see and understand

anyway, should you need me I'll be around, just ask ;)

David Carlisle

@barbarabeeton @StefanKottwitz it's not clear that the gh one is wrong (I'd have to check)

barbara beeton

@DavidCarlisle -- i suspect that what's actually on github is correct, that the backslashes gpt doubled on so ... and that there are more ... any idea what other sx or so sites might have tex code in questions?

Stefan Kottwitz

1

Q: Latex system of equation to Wolframalpha

I have latex string of a system equation: \\left\\{ \\begin{array} { l } { y = - \\frac { 5} { x } } \\\\ { y = - 5} \\end{array} \\right. but i don't know how to input or convert it into wolframalpha. Anyone know how to do it?

wolfram-mathematica wolframalpha

Quoting by an additional backslash can have a proper reason within another language. But then, I guess, for all backslashes, not just for some

I don't find further such posts with a doubled backslash though, just good quoting backslashes

Johannes_B

7:33 PM

@ChristianHupfer This could have been MDT :-) tex.stackexchange.com/questions/376725/…

Christian Hupfer

7:50 PM

@Johannes_B Is there any difference actually? ;-)

Joseph Wright

8:28 PM

@DavidCarlisle Issue with grfguide.tex was actually pretty recent

David Carlisle

@JosephWright yes must say it seemed surprising (not least because the ctan checks for pdf doc without source have been there before I think)

Joseph Wright

@DavidCarlisle Also as I think this was one of my test cases when getting l3build usable with LaTeX2e

David Carlisle

@barbarabeeton it isn't clear the doubled \ is wrong (and I haven't had chance to check the github pages markdown syntax)

Joseph Wright

@DavidCarlisle I read over some of those 'best practice' things on my train journey: we probably do a surprising number of them :)

David Carlisle

@JosephWright haven't had time to look today but I saw the landing page you linked to, I have a feeling I read those before in some version, it looked familiar

Ulrike Fischer

8:34 PM

@PauloCereda Discrimination! Look at the rule that I found for the rabbit hash mayor election: "Candidates may be biped, triped or quadruped and must be able to chase a rabbit from their home to the Rabbit Hash town center within one hour’s time. (Ducks and geese are still excluded)." (rabbithashhistsoc.org/rabbit-hash-seeks-new-mayor).

barbara beeton

@DavidCarlisle -- please tell me how \\documentclass can be correct. also, to quote from the second example that @StefanKottwitz quoted, "It can render properly the following equations: \\[ \frac{1}{n^{2}} \\] ". since it's stated in the answer that using $$ rather than \{...\] works, this one can't be correct either. and @StefanKottwitz has quoted a third one, where there are four backslashes in a row, in a string that begins with ``\\left`. something has definitely gone flaky.

i won't blame a misguided mass update, but certainly the original posters wouldn't have used those backslashes in that way.

David Carlisle

@barbarabeeton the question is about typing into a wiki page so the question is does \[ have meaning in the wiki in which case it will need \\[

@barbarabeeton the first one with all the \\ is clearly wrong but it could just as easily be user error there is no indication that it's been changed by any back end update

barbara beeton

@DavidCarlisle -- okay, i'll buy that, but i've found the wikis here that are allegedly created to inform the production group how to code certain things show double backslashes in the "regular output". all of which says to me that wikis are probably not really suitable for guiding (la)tex input. i'm simply depressed by the whole mess.

David Carlisle

@barbarabeeton it's confusing and people have been getting it wrong since before wikis and before stackexchange, look at any shell script running sed over tex input, the number of \ you require depends on which shell you are using, whether you use single or double quotes around the expression, the phase of the moon and several other factors, basically everyone just doubles them until they work, getting the quoting right in wikis isn't any different.

barbara beeton

8:52 PM

@DavidCarlisle -- okay, i'll buy that too. however, having been burned by a tool required here for preparing web pages, that definitely (reproducibly) doubles backslashes without warning, i'm gunshy. the problem has been demonstrated to the person in charge of maintaining the thing -- who refuses to do anything about it since there's a workaround, namely redoing the input. i dislike unpredictable tools.

David Carlisle

@barbarabeeton it's probably predictable, check the phase of the moon!

Stefan Kottwitz

@DavidCarlisle and the pound exchange rate

David Carlisle

@StefanKottwitz monotonic decreasing functions typically don't generate apparently random behaviour

3

Stefan Kottwitz

@DavidCarlisle It's about speed and acceleration, not direction.

Well, tomorrow it may be our politicians causing unpredictable stuff.

Christian Hupfer

9:22 PM