TeX, LaTeX and Friends

7:42 AM

@JosephWright lol didn't even notice the video was in the quanta article.

So I asked my colleague to send me the log file, and the last few lines are:
```
LaTeX Font Info: Overwriting math alphabet `\mathfrak' in version `bold'

(Font) U/euf/m/n --> U/euf/b/n on input line 96.

)) ("C:\Program Files (x86)\MiKTeX 2.9\tex\latex\fontspec\fontspec.sty"

Package: fontspec 2011/02/26 v2.1f Advanced font selection for XeLaTeX/LuaLaTeX

! LaTeX Error: File `expl3.sty' not found.

Type X to quit or <RETURN> to proceed,

or enter new name. (Default extension: sty)

Ulrike Fischer

@tush fontspec 2011/02/26 ? That is ancient.

tush

@UlrikeFischer Hmm yes

So I guess my friend's TeX installation is not up to date?

Ulrike Fischer

@tush which latex is used? (start of the log)

tush

```
This is XeTeX, Version 3.1415926-2.2-0.9997.4 (MiKTeX 2.9) (preloaded format=xelatex 2019.12.26) 18 MAY 2022 10:27

entering extended mode

**main.tex
```

Ulrike Fischer

7:50 AM

@tush that is not the latex version, only the date it has been built. Look at the next lines.

tush

You are right. Sorry,
```
(C:\Users\user___name\AppData\Local\Temp\lyx_tmpdir.TZFcEbAKKeGe\lyx_tmpbuf0\main.tex

LaTeX2e <2009/09/24>
```

Ulrike Fischer

OMG. 2009.

tush

@UlrikeFischer All right so we need to install a new one?

Ulrike Fischer

@tush what is the operating system of the computer?

tush

@UlrikeFischer Windows 10 I think. Windows 7 for sure if not newer

Ulrike Fischer

7:53 AM

@tush better check that. In view of the age of the rest it could be window 98 ;-)

tush

@UlrikeFischer No it isn't. He shared his desktop with me in a video call and it was either windows 7 or 10.

Ulrike Fischer

@tush miktex requires windows 10: miktex.org/kb/prerequisites. Everything below is not supported. If a new install should be done then your friend will probably have to reinstall lyx too. And this means a good clean up first and so the first step should be good backups. And then some research where everything is and what is needed to remove it. And some talk with the IT guys. The best would be if he had access to some other computer where he could test a fresh install.

tush

@UlrikeFischer What do you mean "other computer where he could test a fresh install"?

We need to install it on his computer

How does one un install a tex installation? Simply deleting all the files in the `C:\Program Files (x86)\MiKTeX 2.9` directory is a good practice?

Ulrike Fischer

@tush sure but what if you completly mess up the installation? Or no document compiles (lyx has a special format and you don't know if you can simply copy/import the files)? It helps a lot to avoid panic if you know it works on another computer which you can use as emergency fallback.

Rmano

@tush the problem is that you could have old file lingering around in a lot of places. So the best way is using the uninstaller --- but I am not sure if such an ancient distribution has one of them.

tush

8:08 AM

@Rmano All right so we will try in uninstall tex from the manager. Fingers crossed :)

David Carlisle

@PauloCereda 7 ovens 7 dinners cooking

0

Q: Incorrect formatting of table with graphics, centering, \Xhline and rowcolor

Hello I am trying to produce this beautiful table with ducks. I have three formatting issues: the most annoying one is that when zooming on the table the white \Xhline or the color bands are slightly uneven when looking at the left edge there is a line break (cf zoomed picture). It looks like it...

Paulo Cereda

@DavidCarlisle oh no

David Carlisle

8:27 AM

@mickep You going to tell me I could use stretchy space in superscripts in LMTX Math? tex.stackexchange.com/a/644635/1090

Ulrike Fischer

@DavidCarlisle I got quite a shock when looking for the overhang. texdoc colortbl opened a german documentation.

David Carlisle

@UlrikeFischer Natürlich, da ich fließend Deutsch spreche

mickep

@DavidCarlisle Well, yes. By default it is not even 0 (in context at least), but \tinumuskip:

So, the ordbin and bindig spaces are set differently depending on style...

(The \tinymuskip is by default set to 1mu)

Maybe I should add an answer.

David Carlisle

8:54 AM

@mickep but I think I have a bug report, is this a bug or documented behaviour?

\def\test#1#2{{%
\immediate\write5{======}
\immediate\write5{\detokenize{#1}}
#1\relax
#2\relax
\immediate\write5{\the\Umathbinordspacing\scriptstyle}
\immediate\write5{}

{\tt\detokenize{#1}}

$k-1$ versus $2^{k-1}$

\bigskip
}}

\test{}
     {}

\test{\Umathbinordspacing\scriptstyle=\Umathbinordspacing\textstyle}
     {\Umathordbinspacing\scriptstyle=\Umathordbinspacing\textstyle}

\test{\Umathbinordspacing\scriptstyle=\the\Umathbinordspacing\textstyle}
     {\Umathordbinspacing\scriptstyle=\the\Umathordbinspacing\textstyle}

@mickep I thought I would be able to make script space the same as text style with\Umathbinordspacing\scriptstyle=\Umathbinordspacing\textstyle but you need an \expandafter dance starting before the assignment??

@mickep please do

mickep

@DavidCarlisle It will take me a while to understand what you do in your example. :)

David Carlisle

@mickep you could discard the example, what value would you expect gets set after \Umathbinordspacing\scriptstyle=\Umathbinordspacing\textstyle ? (the answer is 0mu not 4mu) you need \expandafter\Umathbinordspacing\expandafter\scriptstyle\expandafter=\the\Umathbinordspacing\textstyle to set the script space to the value of the text space

mickep

@DavidCarlisle Hehe, I never did things like that, so I could not say I would expect anything.

David Carlisle

@mickep I'd not done it before but since the quesion was "make the script spacing be the same as text style" it seemed the natural answer, apart from the fact it didn't work....

mickep

@DavidCarlisle Oh, I see. Sounds like a bad idea to make it the same...

David Carlisle

9:11 AM

@mickep er if we discount questions from OP that are bad ideas, egreg will never get to a million points

2

@mickep "same" relative to font size not absolute value so 4mu here

mickep

@DavidCarlisle Ohh

@DavidCarlisle One could definitely define a style where all the spaces are set up with \allmathstyles instead, but would it make sense? I don't think it would look good.

David Carlisle

@mickep sure I suspect the OP really just wants it to look less cramped (with the default 0pt) which is why I answered using a literal4mu setting rather than extracting the text style value, so it could be easily adjusted, but usually you can use these sort of things as a value on the rhs so it just seemed strange to give 0mu with no error

Ulrike Fischer

9:45 AM

@MarcelKrüger do you think that one could with lualatex improve the link area in such cases as in this question: tex.stackexchange.com/a/644543/2388 ?

mickep

9:58 AM

@DavidCarlisle Did so. Time for lunch.