When was the first volume of TAOCP first published? TAOCP's wiki page says 1968 but TeX's page says 1969

@Kurzd -- if you can, check don knuth's own web pages. i'd believe that more readily than either of the others you cite.

His CV says "Volumes 1--3 appeared in 1968, 1969, and 1973;...". Imma edit TeX's article.

He wrote LR(k) parsing as LR$(k)$ parsing instead of LR({\em k}) parsing for some reason.

@barbarabeeton Thanks. Didn't cross my mind that Knuth would have a website.

@egreg they would both likely fail in math at my (chemistry) university.

@Kurzd Maybe \em is a LaTeX invention and not in TeX? Dunno. I have actually never used TeX. :D

@Kurzd \em isn't plain tex but even in latex $ would be more correct. That k is italic as it is a math variable not because you want to emphasise it.

Small challenge. This is the code from mathtools behind the \noeqref command. It is basically build on the code for \nocite. Where is the sporadic space?

If you run X\noeqref{X}X you'll get X X and I don't quite understand why.

@daleif There's a space at the end of \@safe@activesfalse}

@JosephWright oh no, why didn't I even see that.... sigh, thanks

@yo' thanks

@egreg I used your personal koma script option:-)

Quack!

Happy monday!

Happy cold Monday!

@PauloCereda What's the weather like in Brazil?

Good morning from the Netherlands

Question: how is the tag in the question title chosen?

@CarLaTeX brrrrr

I posted a question with tags beamer, numbering, positioning, gb4e

@DavidCarlisle Preferred one!

and the question is called numering - [question title]

@CarLaTeX Google tells me 23C. :)

@Marijn initially the person asking the question guesses something appropriate then it gets changed if needed by anyone else.

but this is the least relevant to the question

@egreg I was especially pleased to feel that it would annoy you as you specify egregdoesnotlikesansseriftitles and get sans serif titles.

is it the most often used tag that is chosen as a question prefix?

in this case, but in others too, the most specific tag is more appropriate

@PauloCereda I'm envious of you!

@DavidCarlisle Well, if you do \setmainfont{Arial}, what are you expecting?

@CarLaTeX beware, the temperature will raise a lot in the next hours. :)

@Marijn I'm not sure to be honest, that prefix is only used in the tab title it doesn't affect searching or anything else so it doesn't really matter

@egreg Oh I know but it pleased me anyway

@egreg well without that option I got lm sans which was not what I was expecting (really)

@DavidCarlisle it is not bothering me a lot :) just a Monday curiousness

@PauloCereda It snowed in Apulia!

@DavidCarlisle There's the \setkomafont{disposition}{...} declaration.

@egreg don't confuse me with technicalities. I've never used these classes.

@DavidCarlisle Neither do I

@CarLaTeX oh no!

brrrrrr

I've never seen snow. The only reference I know it is \color{white}

@PauloCereda it looks like ^^^^

@DavidCarlisle ooh

Pretty accurate representation. :)

@PauloCereda Oooh, what a pity! It's a beautiful landscape if you don't have to drive in the middle of it

Did you zoom the stars in the Brazilian flag, by the way?

@PauloCereda I did choose "6 pointed star" to get a scientifically accurate depiction

@CarLaTeX When I was about to leave São Paulo and fly to Madrid, I checked the weather: the indications were 23C in Madrid and 28C in Barcelona, three days after my arrival. Then I thought, "well, I can easy handle these temperatures", but I had no idea about the wind! It was SO COLD! I almost froze to death!

@PauloCereda It was windy also in Milan some days ago, and that's not usual

@PauloCereda Here's the “Queen of the Dolomites”, Cortina d'Ampezzo with its mountains full of snow!

Oh, well…

@egreg lots of snow!

It looks very high.

@egreg It snowed in Apulia and not on the Dolomites!

@PauloCereda Yeah! Draught.

@DavidCarlisle github.com/matze/mtheme/pull/250#issuecomment-271237630

@CarLaTeX Here's another view:

@egreg Ooooh, what a pity that there is no snow!

@CarLaTeX I've seen more in late springtime. ;-)

@egreg but the weather forecast say it's snowing later this week...

@CarLaTeX Which worries me: when it snows in Milan, trains from there get painfully late.

@JosephWright "The thing about TeX is if you change anything you break something. ... " tex-talk.net/2012/04/textalk-an-interview-with-david-carlisle

@DavidCarlisle Yes, I know :)

@PauloCereda -- if you are in a city, "white" depends on (1) the air quality, and (2) how long it has been around. it can go grey from either condition, or, after a while (2) yellow in spots.

@barbarabeeton ooooh

@egreg Yes, and the traffic goes crazy and the busses are late, too!

@PauloCereda -- we checked the weather at home: 33 cm of snow on friday-saturday. (our ever-generous next-door neighbors shoveled out our sidewalk and driveway! that's above and beyond!) but when we fly home tomorrow, the temperature is expected to be about +10 c, so (except in shady areas) it should mostly be gone.

@CarLaTeX Some years ago, due to an ice storm over the Pianura Padana, Milan central station had “some problems” with the switches, so I got home at 4 am.

@egreg OMG!

@CarLaTeX At 2 am there were hails of joy when they announced the train from Milan was running six hours late. There had been no train at all from 6pm.

@egreg I've been in Milan station late, but not that late

@barbarabeeton oh my, that's a lot of snow!

@PauloCereda according to accuweather it's -19 in Moscow at the moment (and early afternoon so as warm as it's going to get:-)

@DavidCarlisle that sounds very cold. :)

@PauloCereda although I'm sure it feels warm compared to a sea breeze off the Mediterranean in summer.

Actual impressions from Clausthal: iei.tu-clausthal.de/wetter/webcam

@egreg What a horrible experience!

@egreg comment on old answer: it just came up as an automatically linked thing on today's unicode in sphinx question

@DavidCarlisle Added comment too

@egreg thanks (I deleted my comment now)

@egreg wavelenghts

@DavidCarlisle I trusted the OP

@egreg why?

@DavidCarlisle Just copied the text from the question

@egreg I know, I meant why trust an OP (ever) :-)

@ebo personally for a one-person-commit project, I'd use svn and a single branch:-)

@ebo You can use a variety of workflows

@DavidCarlisle actually, I only know git... and the point here would be to benefit from the advisor branch + to be able to deliver two versions based on the same content (one with no or little formatting for supervisor reviewing + one for the final version with advanced layout definition)

@ebo For my more complex stuff I use two branches ('stable' and 'master'), for simpler stuff as @DavidCarlisle says one branch

@ebo That's more about having two setups to typeset the material than having two branches in your version control

@ebo I take it you are using Gitflow or similar as an approach?

@JosephWright well, two "issues" merges here: 1) having two setups (but it's another/a sub-problem... i.e. not the major focus of my question on SO), and 2) having several branches - basically one for each \included file.

@ebo to be honest I wouldn't use source control branching for that as the source control has no intuition over what differences are allowed between the branches, I'd think it far too easy for them to diverge in ways other than formatting. I'd do the variants within the tex document with a draft option that does the basic style and a final option that does any fancy styling that you want.

@JosephWright yep, I'm basically following the git flow - but since I'm starting and it seems pretty unefficient for the moment, I wanted to improve that

@JosephWright I was going to ask that ^^^ :-)

@ebo Do you need Gitflow? As @DavidCarlisle has already said, for a single person and a small-ish project there's no obvious benefit over just having everything on master

@ebo Indeed, for the LaTeX core development that's what we have (well, it's SVN but the same idea applies really)

@JosephWright my PhD isn't intended to be that small-ish (-;

@ebo :)

@ebo less than a few thousand files is smallish

but maybe I over-thought/complicated things for nothing... !

@ebo 'Small' here is about number of people/branches/features: I'm not that sure about Gitflow even for big things, but for small ones I really do think it's overkill

@ebo I guess atlassian.com/git/tutorials/comparing-workflows/… is closest to what we use, but we never bother with the branch business :)

@JosephWright (about "... overkill") Yep... at least it seems to be the case! I'll thus streamline and simplify my workflow and see how it's going.

@ebo The thing about Git is it's flexible but there is no one 'true' way to work: choose something that gives you a history you can use

@ebo Like I've said, the most complex I go for is two branches: that's where I need to be able to make some 'risky' changes but also do 'maintenance' and don't fancy having to unpick stuff

@JosephWright seems legit. I think I'll give this a try... + occasional temporary branches when drafting tikz figures.

@JosephWright @DavidCarlisle So thank you for your quick feedback!

mozilla/Fira: Mozilla's new typeface, used in Firefox OS -- Quote a nice set of sans serif fonts.

Oo! This is interesting: OpenType Layout tag registry

@egreg will you mail Ross re pdfx?

@DavidCarlisle I'll do

@DavidCarlisle Oh good

@JosephWright Ross Noble

I am watching too much British television.

@DavidCarlisle Bcc'd to you

@PauloCereda no more TV until you have finished your clarinet practice thesis

@DavidCarlisle oh no

Wait a minute, no trombone?!

@PauloCereda no (but perhaps I had @JosephWright in mind for the deleted text)

@egreg thanks, got it

@DavidCarlisle ah! :)

\documentclass{article}

\ifx\Umathchar\undefined\else
\usepackage{fontspec}
\fi

\showhyphens{implementation}

\stop

@JosephWright @egreg do you have old installations to hand ^^^ \showhyphens seems broken in xelatex but I'm not sure if it was working before. I thought it was..

There is a version credited to @egreg in xltxtra.sty but I thought we had put something in the format...

@DavidCarlisle It has never worked, when OT fonts are involved.

@DavidCarlisle I think we had some discussion here a few months ago

@egreg got a reply to my comment in the LA question. Funny: if he does not know math, why he dare saying someone else is wrong?!

@yo' He said he didn't downvote and he answered before I did.

@DavidCarlisle Didn't Will have some other version of \showhyphens for this?

@DavidCarlisle chat.stackexchange.com/transcript/41?m=26523078#26523078

@egreg yes I know the original never worked but I thought we put in a xetex version when we started supporting xetex in the kernel but apparently not

@JosephWright yes in xltxtra but all coded up in some strange variant of tex with _ and : so need to back convert if we put in the format (which I think we should do for 2017 if it's going to default to TU/lm)

@DavidCarlisle Yes, probablt

I am trying to use pgfplots with ultra thick lines (and possibly thicker) and various line styles, but they do not look very good in my opinion. I think the on/off ratios need to scale. Has anyone done this?

Ooh, a message from Leslie!

@DavidCarlisle On the Win10 thing, there must be more to this: both of my Win10 systems are up-to-date and don't have any PATH oddities

@JosephWright yes I wonder if it was an office or visual studio update that broke something, wouldn't be the first time:-)

@JosephWright bit embarrassing that we dropped that one:-)

@DavidCarlisle Indeed

@DavidCarlisle 'It's not my fault'

@JosephWright Where?

@JosephWright I never got the mail so we could blame R*** and if I run the example I get ! Undefined control sequence. <argument> ...@base \Gin@ext image\GPT@AttrShort so we can blame H*** so i agree "It;s not my fault"

@Johannes_B secret:-)

@DavidCarlisle Ah :-(

@DavidCarlisle Nope ;)

@Johannes_B latex-project.org/cgi-bin/…

@DavidCarlisle I think the bit where the report has lamport in the paths is a bit of a giveaway

@DavidCarlisle At least he's not sending me beamer bug reports (yet), cf. one F. Mittelbach!

@JosephWright also the fact that he's using graphics-with-an-s :-)

@DavidCarlisle Thanks for explaining. @wilx The answer was "\em isn't plain tex but even in latex $ would be more correct. That k is italic as it is a math variable not because you want to emphasise it. "

@JosephWright I hope that in return you are pushing F. to move on with L3 while you are handcuffed by beamer

@StefanKottwitz Actually the two tasks are related

@JosephWright sure, pushing while wearing handcuffs

Seeing this reminds me the documentation of colortbl

The more colors in a document, the better!

@egreg That's the first question of @DavidCarlisle. You noticed the use of paint.

@StefanKottwitz Are you saying he's using sock puppets? ;-)

@egreg for asking all the questions about longtable and now he's finally learning TikZ

@egreg sorry, bad jokes let look me like a sock puppet of him :-)

But it was'nt about you so not guilty.\qed

Had to branch beamer: the fiddling about is likely a bit risky for urgent patches

@JosephWright 102 pages about writing units upright - now I wait for your beamer documentation :-)

@StefanKottwitz Units are very interesting ;-)

@JosephWright What's the unit of 90-60-90? m^3?

@StefanKottwitz Seriously, I'm hoping getting a bit more insight into the beamer internals will help with template-like stuff more generally

@JosephWright True, beamer is inviting templates.

Corp use: CI designer templates for pre-sales people to set up a pres in minutes

@StefanKottwitz It's MM (Marilyn Monroe)

@egreg I thought GL (Gina Lollobrigida)

@egreg it's good to be reminded of great works of art every now and then

@DavidCarlisle It doesn't reach the heights of the manual of tabu, but it goes a long way

@egreg go away and read texdoc comicneue

@egreg Huh?

@JosephWright 90-60-90! Oh, well, you think Imperial!

@egreg @JosephWright @WillRobertson xltxtra.sty has some code from Will/egreg for \showhyphens it loops through spaces and tests each word before reconstituting the list. I think I can possibly simplify as follows but I might be missing something , comments welcome (thinking of adding this to the format for xelatex)

\documentclass{article}

\usepackage[greek,english]{babel}

\ifx\Umathchar\undefined
\usepackage[utf8]{fontenc}
\else
\usepackage{fontspec}
\fi

\ifx\XeTeXcharclass\undefined\else
\makeatletter


\long\def\showhyphens#1{%
  \setbox0\vbox{%
    \usefont{TU}{lmr}{m}{n}% needs to be an OT font
    \hsize 1sp
    \hbadness\@M
    \hfuzz\maxdimen
    \everypar={}%
    \leftskip
    \rightskip\z@skip
    \pretolerance\m@ne
    \interlinepenalty\z@
    \clubpenalty\z@
    \widowpenalty\z@
    \brokenpenalty1127 % unlikely number

Seems good, but there's something missing after \leftskip

@DavidCarlisle Agreed

@egreg odd \z@skip was there last time I looked:-)

@DavidCarlisle I was trying to see why there was no error message

@DavidCarlisle \z@skip is set to -\pretolerance sp

@egreg yes, undocumented feature

@DavidCarlisle :)

@DavidCarlisle There's a different hyphenation for the last Greek word with XeLaTeX and pdflatex

λέ-ξεις with XeLaTeX and l?xeic with pdflatex

But it might be expected

@egreg but he moreroless claims the textbook is wrong, which is a bold statement.

@yo' Not really clear; however, the “so” is really misleading, but it can be how the OP reported it.

@egreg link?

@egreg ah not this site:-)

@DavidCarlisle No, it's math; probably nothing you can understand. :P

@egreg big matrices by your standards, as well

@DavidCarlisle Ask my students

Is \PassOptionsToPackage universally usable? E.g., right now I could use these to pass some options to url and hyperref packages so that they get the option I want even if they are used from inside another package.