[Happy Pig Day](https://www.daysoftheyear.com/days/pig-day/) 
Spanish translations are rather weird. Understandable, but weird (as if they were obtained via Google or Deepl). Fortunately, the Spanish version, unlike the Portuguese one, is neutral, but some Spaniards told me the "usted" is unusually formal for them (they prefer the more direct "tú" for "you" instead). Minutiae.
Yes, I agree. IMHO they should just avoid touching the differential. In particular since they seem to be aware of the fact that different communities follow different conventions, and they want to be neutral: https://github.com/learnlatex/learnlatex.github.io/issues/112.
Wrt italic differentials, I was talking about South America (sorry for the lack of context). Engineers here are stricter concerning standards. Mathematicians tend not to care too much about such details. Mmm, I'd better leave such generalizations to corpus linguistics as it's a matter of written usage, even when restricted to STEM.
I agree. https://github.com/learnlatex/learnlatex.github.io/issues/70. IMHO it would have been nice if they had resolved that one before starting the translations.
Oh, well, I didn't know about that part (I gave up on reading that page as I seldom use LaTeX now), but it makes sense if you put it that way. A comment about it in the GitHub page wouldn't harm.
Well, I agree with the statement that one should not impose not standards on others, which is precisely why I have a major problem with what [learnlatex.org](https://www.learnlatex.org/) is doing. It would be great if they could refrain from propagating on particular way of typesetting differentials, the more so since they also write `\sin`, and not `sin`. And they are detailed enough to say "We’ve added one piece of manual spacing here: `\,` makes a thin space before the `dx`, which we need so it does not look like a product." (which is a somewhat strange statement on its own, what is it if it is not a product, maybe they could indicate what they think it is...). As for the statement that European engineers use upright differentials and American mathematicians italic ones: I disagree. Why? I have first hand information. And there are [many examples](https://web.ma.utexas.edu/users/a.debray/lecture_notes/).
You should consider standards are not ubiquous (and thus not applicable to everyone) nor fixed in stone (they may and will change as time passes, so what you consider "incorrect" today may stop being so tomorrow). AFAIK and incidentally upright `d` is more popular among engineers than mathematicians here, but maybe things differ in the USA.
Well, I think that we largely agree. I also know that there is no "one size fits all", and I am certainly not suggesting to impose anything on others. My only point is that I find it unfortunate that [learnlatex.org](https://www.learnlatex.org) makes a choice for newcomers. I would plea for either avoiding differential `d`s altogether, or mentioning that there can be pitfalls.
I'm not trying to say that the upright "d" is wrong. There are good reasons to use an upright "d". But I was involved with publishing at the American Math Society for over 40 years; AMS has been in existence for nearly 150 years, publishing mathematics the whole time. Before I retired, I examined publications covering that whole period, and only the italic form is seen until just a few years ago. The upright "d" is now accepted as an author preference, as long as it is used consistently. And Don Knuth's preference is evident in the Computer Modern font used for math variables, as demonstrated by the absence of an italic correction *only* for "d"; perhaps he never had an occasion where making a clear visual distinction made a difference. I would like to examine usage through actual publishing history, and present that history without prejudice. The sources I need to look at are available only in good academic libraries, and those are inaccessible at present.
Well, I am not imposing how to typeset a differential `d` on anyone but if there is a very basic introduction in which they highlight a convention that is not the standard convention and do not mention that this can be a problem, then this is IMHO very unfortunate. They could just decide not to show formulae with a differential in it, or mention that there are at least two conventions around (with one of them being official). I am really really sad to see this. And I am sorry, it is *not* true that the italic `d` is "traditional among mathematicians"! I know that some are claiming this, but this is not the case, certainly not among all mathematicians. Maybe there is a subbranch, but the statement as it stands is simply wrong, sorry to say this so explicitly.
While your analysis of the use of an italic "d" for differential is most likely true, it's also the case that Don Knuth uses the italic "d" in this way, as it's traditional among mathematicians. When libraries are fully open again, I will continue to look into the practice, with the goal of writing an essay on the history.
I thought they were constructing it. I remember specifically a question on how to formulate things there. (But I must say that I am not too excited about this site. For instance, they use incorrect differential `d`s, probably just because there is one very loud person.)
Wah Wah. NIce. I asked because learnlatex.org has no German language page.
For instance, [this lecture](https://www.tcs.uni-luebeck.de/de/mitarbeiter/tantau/lehre/lectures/LaTeXundTikZ-2015.pdf) is by someone, likely the only one, who understands Ti*k*Z.
@joulev because of your [this](https://topanswers.xyz/transcript?room=347&id=61447&year=2020&month=7#c61447) chat message which you had sent a long time ago, I came to know about learnlatex.org and its translation PRs. I am glad to declare that yesterday the site was enriched with another translation i.e. Marathi. This message is to thank you as the process started after your message :)
Can you please go to this chat room https://topanswers.xyz/meta?room=1 and explain your problem to @Jack ?
Unfortunately this fragment of log file does not cover the error you get. However it looks like your tex distribution is not really up-to-date, so maybe you have an old version of the tikzducks package? Can you maybe use the `Ask` button to start a new question and include there 1) a small but compilable document that reproduces the problem to make sure we are talking about the same code 2) the complete .log file of this minimal (non)working example 3) specify what exactly you mean by "not working". Do I assume correctly that you get an error?
I have many questions with nick name Anonymous 1123. Now I want to log in with this acount (old acount). How can I do that?
This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/Debian) (preloaded format=pdflatex 2019.5.26) 26 FEB 2021 00:41 entering extended mode restricted \write18 enabled. %&-line parsing enabled. **new.tex (./new.tex LaTeX2e <2017-04-15> Babel <3.18> and hyphenation patterns for 84 language(s) loaded. (/usr/share/texlive/texmf-dist/tex/latex/standalone/standalone.cls Document Class: standalone 2015/07/15 v1.2 Class to compile TeX sub-files stand alone (/usr/share/texlive/texmf-dist/tex/generic/oberdiek/ifluatex.sty Package: ifluatex 2016/05/16 v1.4 Provides the ifluatex switch (HO) Package ifluatex Info: LuaTeX not detected. ) (/usr/share/texlive/texmf-dist/tex/generic/oberdiek/ifpdf.sty Package: ifpdf 2017/03/15 v3.2 Provides the ifpdf switch ) (/usr/share/texlive/texmf-dist/tex/generic/ifxetex/ifxetex.sty Package: ifxetex 2010/09/12 v0.6 Provides ifxetex conditional ) (/usr/share/texlive/texmf-dist/tex/latex/xkeyval/xkeyval.sty Package: xkeyval 2014/12/03 v2.7a package option processing (HA) (/usr/share/texlive/texmf-dist/tex/generic/xkeyval/xkeyval.tex (/usr/share/texlive/texmf-dist/tex/generic/xkeyval/xkvutils.tex \XKV@toks=\toks14 \XKV@tempa@toks=\toks15 (/usr/share/texlive/texmf-dist/tex/generic/xkeyval/keyval.tex)) \XKV@depth=\count79 File: xkeyval.tex 2014/12/03 v2.7a key=value parser (HA) )) \sa@internal=\count80 \c@sapage=\count81 (/usr/share/texlive/texmf-dist/tex/latex/standalone/standalone.cfg File: standalone.cfg 2015/07/15 v1.2 Default configuration file for 'standalone ' class ) (/usr/share/texlive/texmf-dist/tex/latex/base/article.cls Document Class: article 2014/09/29 v1.4h Standard LaTeX document class (/usr/share/texlive/texmf-dist/tex/latex/base/size10.clo File: size10.clo 2014/09/29 v1.4h Standard LaTeX file (size option) ) \c@part=\count82 \c@section=\count83 \c@subsection=\count84 \c@subsubsection=\count85 \c@paragraph=\count86 \c@subparagraph=\count87 \c@figure=\count88 \c@table=\count89 \abovecaptionskip=\skip41 \belowcaptionskip=\skip42 \bibindent=\dimen102 ) \sa@box=\box26 ) (/usr/share/texlive/texmf-dist/tex/latex/tikzducks/tikzducks.sty Package: tikzducks (/usr/share/texlive/texmf-dist/tex/latex/xcolor/xcolor.sty Package: xcolor 2016/05/11 v2.12 LaTeX color extensions (UK) (/usr/share/texlive/texmf-dist/tex/latex/graphics-cfg/color.cfg File: color.cfg 2016/01/02 v1.6 sample color configuration ) Package xcolor Info: Driver file: pdftex.def on input line 225. (/usr/share/texlive/texmf-dist/tex/latex/graphics-def/pdftex.def File: pdftex.def 2018/01/08 v1.0l Graphics/color driver for pdftex ) Package xcolor Info: Model `cmy' substituted by `cmy0' on input line 1348. Package xcolor Info: Model `hsb' substituted by `rgb' on input line 1352. Package xcolor Info: Model `RGB' extended on input line 1364. Package xcolor Info: Model `HTML' substituted by `rgb' on input line 1366. Package xcolor Info: Model `Hsb' substituted by `hsb' on input line 1367. Package xcolor Info: Model `tHsb' substituted by `hsb' on input line 1368. Package xcolor Info: Model `HSB' substituted by `hsb' on input line 1369. Package xcolor Info: Model `Gray' substituted by `gray' on input line 1370. Package xcolor Info: Model `wave' substituted by `hsb' on input line 1371. ) (/usr/share/texlive/texmf-dist/tex/latex/pgf/frontendlayer/tikz.sty (/usr/share/texlive/texmf-dist/tex/latex/pgf/basiclayer/pgf.sty (/usr/share/texlive/texmf-dist/tex/latex/pgf/utilities/pgfrcs.sty (/usr/share/texlive/texmf-dist/tex/generic/pgf/utilities/pgfutil-common.tex \pgfutil@everybye=\toks16 \pgfutil@tempdima=\dimen103 \pgfutil@tempdimb=\dimen104 (/usr/share/texlive/texmf-dist/tex/generic/pgf/utilities/pgfutil-common-lists.t ex)) (/usr/share/texlive/texmf-dist/tex/generic/pgf/utilities/pgfutil-latex.def \pgfutil@abb=\box27 (/usr/share/texlive/texmf-dist/tex/latex/ms/everyshi.sty Package: everyshi 2001/05/15 v3.00 EveryShipout Package (MS) )) (/usr/share/texlive/texmf-dist/tex/generic/pgf/utilities/pgfrcs.code.tex Package: pgfrcs 2015/08/07 v3.0.1a (rcs-revision 1.31) )) Package: pgf 2015/08/07 v3.0.1a (rcs-revision 1.15) (/usr/share/texlive/texmf-dist/tex/latex/pgf/basiclayer/pgfcore.sty (/usr/share/texlive/texmf-dist/tex/latex/graphics/graphicx.sty Package: graphicx 2017/06/01 v1.1a Enhanced LaTeX Graphics (DPC,SPQR) (/usr/share/texlive/texmf-dist/tex/latex/graphics/graphics.sty Package: graphics 2017/06/25 v1.2c Standard LaTeX Graphics (DPC,SPQR) (/usr/share/texlive/texmf-dist/tex/latex/graphics/trig.sty Package: trig 2016/01/03 v1.10 sin cos tan (DPC) ) (/usr/share/texlive/texmf-dist/tex/latex/graphics-cfg/graphics.cfg File: graphics.cfg 2016/06/04 v1.11 sample graphics configuration ) Package graphics Info: Driver file: pdftex.def on input line 99. ) \Gin@req@height=\dimen105 \Gin@req@width=\dimen106 ) (/usr/share/texlive/texmf-dist/tex/latex/pgf/systemlayer/pgfsys.sty (/usr/share/texlive/texmf-dist/tex/generic/pgf/systemlayer/pgfsys.code.tex Package: pgfsys 2014/07/09 v3.0.1a (rcs-revision 1.48) (/usr/share/te
This works for me ``` \documentclass{standalone} \usepackage{tikzducks} \begin{document} \begin{tikzpicture} \duck[ speech=\scalebox{0.4}{\parbox{2cm}{\color{black} \centering Happy Toast Day}}, devil=green ] \end{tikzpicture} \end{document} ``` 
\duck[ speech=\scalebox{0.4}{\parbox{2cm}{\color{black} \centering Happy Toast Day}}, devil=green ] line with green word didn't work. Why?
No :) You want to enter another participant to the "worst bureaucracy ever" contest?

I have not enough knowledge to comment on [these comments](https://tex.stackexchange.com/questions/549836/which-latex-packages-do-really-support-3d-points-manipulations-etc/583292#583292). Please help me understand these comments (between [Money Oriented Programm](https://tex.stackexchange.com/users/87876/money-oriented-programmer ) and [Black Mild](https://tex.stackexchange.com/users/140722/black-mild).
Of course not !! People were changing the timestamp on the paper while they were outside so it had to be pencil written... If there were a TopAnswersBureaucracy, it could be in French...
Apparently I might have misunderstood your request. Could you head over to the other chatroom https://topanswers.xyz/transcript?room=1&id=89275#c89275 and clarify if you want to change the name of your current account or gain access to your old one?
I saw that !! Insane !! but guess what... after (at least) 200 printed pages I've never had one single control in Paris since it all began.
How people handle these forms seems to be an interesting character study. The creator of one of the podcasts I follow released a video showing his wife and him making handwritten copies of the form because they don't have a printer. One of them copied the text word by word, the other only wrote the first couple of words from each paragraph :)
I let @Jack know about your problem https://topanswers.xyz/transcript?room=1&id=89195#c89195 Let's see if he can help
That's great! Jack might be able to merge your accounts. I'll ping him in the Tavern
This one worked for me. 