Week

This is a follow-up question of https://tex.stackexchange.com/a/163355. After numerous experiments with the lettrine package in the task of preparing a collection of poems for a friend who is unfamiliar with LaTeX, I have found the superb piece of code from Steven B. Segletes, and was delighted primarily because only the \startverse command does the job. However when long verses exceed the settings as in the example below, there is a space created between the lines 2 and 3 of the poem. I have been able to eliminate the problem by removing the "verse" package from the preamble, and also to some extent by changing the length of the minipage, in the code \begin{minipage}{4in}. But I wish to better understand the role of the {4in} minipage lenghth. (I wonder if a size depending on the textwidth would be more adequate and why the verse package affects the results. \documentclass[12pt, a5paper,draft]{book} \usepackage{scalerel} \usepackage[english]{babel} \usepackage[numberpoems, clearpageafterpoem]{poetrytex} \usepackage{showframe} \usepackage{stackengine} \usepackage{verse} %Following code borrowed from Steven B. Segletes %https://tex.stackexchange.com/a/163355 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \def\startverse#1\\#2\\{% \begin{minipage}{4in}% \firstline#1\relax% \def\verselineB{#2}% \if Q\versalletter\def\descstrut{\strut}\else\def\descstrut{}\fi% \def\Versal{\scalerel*{$\fontsize{28}{30}\selectfont\versalletter$}% {\def\stacktype{L}\stackon{T\descstrut}{T}}}% \setbox0=\hbox{\Versal\,}% \noindent\hspace*{\wd0}\verselineA\\% \smash{\Versal\,}\verselineB\strut% \end{minipage}\\% } \def\firstline#1#2\relax{\def\versalletter{#1}\def\verselineA{#2}} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \begin{document} Note: The witdh of the text is {\the\textwidth} \begin{poem}{A Limerick}{} \startverse There was an old party of Lyme\\ Who married three wives at one time. \\ When asked: ‘Why the third?’ \\ He replied: ‘One’s absurd, \\ And bigamy, sir, is a crime.’ \\ \end{poem} \end{document}

I'm trying to define some custom theorem environments with tcolorbox, while keeping the usual amsth syntax \begin{my_env}[My Optional Title] \label{my_optional_label} stuff \end{my_env} instead of tcolorboxs \begin{my_tcb_env}{My Optional Title}{my_optional_label} stuff \end{my_tcb_env} one. This way, if I decide to get rid of tcolorbox, I can do that without much hassle. I achieved a good-looking result with the following definitions: \definecolor{definitioncolor}{HTML}{0072B2} % Blue \definecolor{theoremcolor}{HTML}{D55E00} % Vermillion \definecolor{examplecolor}{HTML}{F0E442} % Yellow \definecolor{propositioncolor}{HTML}{D55E00} % Vermillion \definecolor{corollarycolor}{HTML}{D55E00} % Vermillion \definecolor{lemmacolor}{HTML}{D55E00} % Vermillion \definecolor{constructioncolor}{HTML}{CC79A7} % Reddish Purple \tcbset{ breakable, commonbox/.style={ boxrule=0.3pt, left=10pt, right=10pt, top=8pt, bottom=8pt, arc=3pt, outer arc=3pt, %colback=white, colbacktitle=white, coltitle=black, colframe=black!12, % Very subtle border enhanced, }, } % Theorem \NewTColorBox[auto counter, number within=section]{thm}{+O{}}{% commonbox, title={\textbf{Theorem} \thetcbcounter\IfBlankTF{#1}{}{ --- #1}}, colframe=theoremcolor, colback=theoremcolor!10, } % Definition \NewTColorBox[use counter from=thm]{dfn}{+O{}}{% commonbox, title={\textbf{Definition} \thetcbcounter\IfBlankTF{#1}{}{ --- #1}}, colframe=definitioncolor, colback=definitioncolor!10, } % Definition \NewTColorBox[use counter from=thm]{construction}{+O{}}{% commonbox, title={\textbf{Construction} \thetcbcounter\IfBlankTF{#1}{}{ --- #1}}, colframe=constructioncolor, colback=constructioncolor!10, } and so on. The problem now is that whenever I \begin{dfn}[My definition] \label{my_definition} stuff \end{dfn} and then try to \ref{my_definition}, I end up with the section number, not the definition number. The same goes for the other environments. This is in some sense expected, but I don't know how to change my code to make it work properly.

See the following code: \documentclass{article} \usepackage{array} \usepackage{arydshln} \begin{document} $\left( \begin{array}{ccc:c} 1 & 3 & 1 & 0 \\ 0 & -7 & 0 & -1 \\ 0 & 0 & m+1 & k-1 \end{array} \right)$ \end{document} With TL2023, it gives the expected result: However, if I switched to Tl24, things changed: When I compiled with my latest TL26 on my PC, it also gives the warning msg of ==> First Aid for arydshln.sty applied!: This is pdfTeX, Version 3.141592653-2.6-1.40.29 (TeX Live 2026) (preloaded format=pdflatex) restricted \write18 enabled. entering extended mode (./mwe.tex LaTeX2e <2026-06-01> L3 programming layer <2026-07-20> (c:/texlive/2026/texmf-dist/tex/latex/base/article.cls Document Class: article 2025/01/22 v1.4n Standard LaTeX document class (c:/texlive/2026/texmf-dist/tex/latex/base/size10.clo)) (c:/texlive/2026/texmf-dist/tex/latex/tools/array.sty) (c:/texlive/2026/texmf-dist/tex/latex/extarrows/extarrows.sty (c:/texlive/2026/texmf-dist/tex/latex/amsmath/amsmath.sty For additional information on amsmath, use the `?' option. (c:/texlive/2026/texmf-dist/tex/latex/amsmath/amstext.sty (c:/texlive/2026/texmf-dist/tex/latex/amsmath/amsgen.sty)) (c:/texlive/2026/texmf-dist/tex/latex/amsmath/amsbsy.sty) (c:/texlive/2026/texmf-dist/tex/latex/amsmath/amsopn.sty))) (c:/texlive/2026/texmf-dist/tex/latex/arydshln/arydshln.sty) ==> First Aid for arydshln.sty applied! (c:/texlive/2026/texmf-dist/tex/latex/l3backend/l3backend-pdftex.def) (./mwe.aux) [1{c:/texlive/2026/texmf-var/fonts/map/pdftex/updmap/pdftex.map}] (./mwe.aux) )<c:/texlive/2026/texmf-dist/fonts/type1/public/amsfonts/cm/cmex10. pfb><c:/texlive/2026/texmf-dist/fonts/type1/public/amsfonts/cm/cmmi10.pfb><c:/t exlive/2026/texmf-dist/fonts/type1/public/amsfonts/cm/cmr10.pfb><c:/texlive/202 6/texmf-dist/fonts/type1/public/amsfonts/cm/cmsy10.pfb> Output written on mwe.pdf (1 page, 35671 bytes). Transcript written on mwe.log. Anyone could kindly tell mme the reason and solution? BTW, I know that nicematrix could handle this easily, but this post is more like a bug report for backward compatibility.

I have this MWE: \documentclass{article} \usepackage{amsmath} \newcommand{\AnschauungMultiline}[2]{% \left\langle\hspace{-1.8mm}\left\langle \vphantom{\begin{matrix} A \\ A \end{matrix}} #1 \mathrel{:} #2 \right\rangle\hspace{-1.8mm}\right\rangle } \begin{document} \[ \AnschauungMultiline{x}{ \begin{aligned} \forall y\biggl( g(&0)\in y \wedge H(0)\in y \wedge \forall n \Bigl((g(n)\in y\to g(n+1)\in y)~\\[-1mm] &\wedge (H(n)\in y\to H(n+1)\in y)\Bigr) \to x\in y\biggr) \end{aligned}} \] \end{document} How may I obtain outer double angle delimiters whose tops align with the top of the upper written line $g(0)\in y\wedge H(0)\in y \ldots$, and whose bottoms align with the bottom of the lower written line $\wedge (H(n)\in y\to H\ldots$? It would be very useful if the solution allows regulation for fine adjustment.

Im curious to know if there is a more efficient way to have triangles repeat themselves in one another without needing to run the \draw command for each line of the triangle; similar to Sierpinski's triangles is essentially what it is but in a different way for nesting. So far i've been doing the \draw command as such \documentclass{article} \usepackage{tikz} \begin{document} \begin{tikzpicture} [scale = 3] \draw[thick] (0,0) -- (2,0) -- (1,1.73205) -- cycle; \draw[thick] (0,0) -- (1,0.8) (2,0) -- (1,0.8) -- (1,1.73205) -- (1,0.8); \draw[thick] (1,0.8) -- (1.566667,0.769); \end{tikzpicture} \end{document} if you do put this into overleaf or some other LaTeX code editor you'll see roughly what i'm trying to achieve. If there isn't a more efficient way to do it without \draw over and over for each line then I'll just need to have patience to do \draw for each line (as well if my current code isnt enough to show what im trying to achieve then i can provide a more detailed example and unfortunately i have not been able to find any images that show what im trying to get seeing as this is a rather new discovery i have found as far as i know).

If I create a minimal drawing using the standalone class, I get a warning: \documentclass[tikz]{standalone} \begin{document} \begin{tikzpicture} \draw circle (1); \end{tikzpicture} \end{document} $ pdflatex [filename] [blah blah] [1 Non-PDF special ignored! <special> papersize=57.30548pt,57.30548pt A similar warning is emitted when using LuaTeX instead of PDFTeX. This message can safely be ignored, of course, but if I recall correctly, it was not there in past versions, and I thought I'd ask if someone knows why it occurs and whether it should occur. I don't know when this started happening, but I also do not remember it happening prior to a particular TeXLIVE upgrade (which would have been from TeXLIVE 2022 -> 2025, iirc, which Fedora was waiting on for quite a while so they could reorganize the packages).

When attempting to plot pH-metric titration curves for weak/polyprotic acids and bases using piecewise Henderson-Hasselbalch approximations, sharp breaks and discontinuous artifacts often appear near equivalence points. Is there a robust, automated way in TikZ and pgfplots to plot continuous curves using exact charge and mass balance equations, while also supporting geometric constructions such as the tangent method (méthode des tangentes)?

While LaTeX has a similar mechanism for inputting single characters, it doesn't mention something like \symttit{ABC€} where you only need to switch ABC in \symttit, meaning you don't need to switch € in \symttit in Monospace Italic style. Replacing characters in the argument - even within other commands unicode-math font character new mapping in \symsf I also used the above reference programs to switch font characters in a similar way: \documentclass{article} \usepackage{unicode-math} \ExplSyntaxOn \NewDocumentCommand{\symttit}{m} { \group_begin: \cs_set:Npn A { \texttt{\textit{A}} } \cs_set:Npn B { \texttt{\textit{B}} } \cs_set:Npn C { \texttt{\textit{C}} } \symit{#1}% Make a unavailable \symttit glyphs in fallback fonts \group_end: } \ExplSyntaxOff \begin{document} \texttt{\textit{ABC}} vs $\symttit{ABC}$ \end{document} However, it does not support switching between Monospace Italic style by inputting a single character within \symttit. The full name of the LaTeX command is required to switch to other character types (like the previous mechanism of converting \symsf{\alpha} to Greek letters).

I'm using Mac TeXShop Version 5.57, on Mac OS Sequoia 15.7.4. I had been using BibTeX before with no problem but I've heard about BibLaTeX and figured I should get with the times and start using it (I also hope to do more complicated things like having several Bibliographies in the same document and such). \documentclass{amsbook} \include{header} % things I define in all my stuff here \usepackage{biblatex} \addbibresource{refs.bib} % my BibTeX file \begin{document} My document, blah blah, \cite{firstcitation}. \printbibliography \end{document} In TeXShop, I go to the "Typeset" Menu > LaTeX Then "Typeset" Menu > BibTeX Then "Typeset" Menu > LaTeX Then "Typeset" Menu > LaTeX like I always did with BibTeX. When it runs BibTeX, I get the following: This is BibTeX, Version 0.99d (TeX Live 2025) The top-level auxiliary file: app-history.aux I found no \citation commands---while reading file myfile.aux I found no \bibdata command---while reading file myfile.aux I found no \bibstyle command---while reading file myfile.aux (There were 3 error messages) and it doesn't generate anything in the .bbl file. In the end, I LaTeX it twice and no bibliography appears but instead I get the error: Package biblatex Warning: Please (re)run Biber on the file: (biblatex) app-history (biblatex) and rerun LaTeX afterwards. I am able to use BibTeX fine: \documentclass{amsbook} \include{header} % things I define in all my stuff here \begin{document} My document, blah blah, \cite{firstcitation}. \bibliographystyle{plain} % We choose the "plain" reference style \bibliography{refs} \end{document} works just fine.

I'm using Latex with Zotero. I want to cite a book from a book series. The book has an author and an editor, and the book series has a separate title (the Dover Thrift Editions) and its own editor. When I add an Editor and a Series Editor role as in the MWEB below, I get the following in the bibliography: "Ed. by Janet B. Kopito, Red. by Susan L. Rattiner". The Red. (redacted) does not reflect the role of the series editor properly. Also, the name of the series is currently not part of the entry in the .bib file. How can I add the information for this publication such that it is displayed completely and accurately? MWEB: \begin{filecontents*}{\jobname.bib} @book{frost2019, title = {New {H}ampshire}, author = {Frost, Robert}, editor = {Kopito, Janet B.}, editora = {Rattiner, Susan L.}, editoratype = {redactor}, } \end{filecontents*} \documentclass{article} \usepackage[% autolang=other, backend=biber, style=numeric, defernumbers=true, autocite=superscript, giveninits=false, uniquename=false, language=english ]{biblatex} \addbibresource{\jobname.bib} \begin{document} \cite{frost2019} \printbibliography \end{document}

Currently I use this to make verbatim display with rounded frame and yellow background, which works well, but I have to use \begin{tcolorbox}[myBox] \begin{verbatim} ..... \end{verbatim} \end{tcolorbox} But I'd like to be shorten this and be able to just write \begin{myVerbatim} ..... \end{myVerbatim} I can't make normal latex environment using \newenvironment{myVerbatim}[1]{% \begin{tcolorbox}[myBox] \begin{verbatim} }{% \end{verbatim} \end{tcolorbox} } Because what I am passing is verbatim. So I tried to use fancyvrb and its \DefineVerbatimEnvironment{myVerbatim}{Verbatim}{ but I am not able to get the exact look I currently have using tcolorbox and verbatim. From what I found it seems fancyvrb does not support rounded corners for frame and also does not support background color. fillcolor is not same. I do not want to use listings package in any way in all of this. (causes issue with tex4ht) Below I show my current tcolorbox implementation and my fancyvrb one. The question is: Is it possible to obtain the same look but using \DefineVerbatimEnvironment ? \documentclass[12pt]{article} \usepackage{tcolorbox} \usepackage{xcolor} \usepackage{verbatim} \tcbuselibrary{breakable} \definecolor{bg}{RGB}{255,255,226} \tcbset{ myBox/.style={ colframe=gray, colback=bg, boxrule=0.5pt, boxsep=4pt, arc=4pt, left=0pt, right=0pt, top=0pt, bottom=0pt } } \begin{document} \begin{tcolorbox}[myBox] \begin{verbatim} some 3^2 verbatim % text \sin x def hello_world_and_my_var(): print("Underscores work fine inside standard verbatim!") return True \end{verbatim} \end{tcolorbox} %I'd like to just do the following instead %\begin{myVeratim} % ................ %\end{myVerbatim} \end{document} Compiled using lualatex Here is the best I can do using fancyvrb \documentclass[12pt]{article} \usepackage{fancyvrb} \usepackage{xcolor} \definecolor{bg}{RGB}{255,255,226} % Define the custom verbatim environment \DefineVerbatimEnvironment{myVerbatim}{Verbatim}{ frame=single, % Adds the outer border framerule=0.5pt, % Sets border thickness rulecolor=\color{gray}, % Sets border color fillcolor=\color{yellow}, % Sets the yellow background color framesep=4pt, % Adjusts internal padding (matches boxsep) } \begin{document} \begin{myVerbatim} some 3^2 verbatim % text \sin x def hello_world_and_my_var(): print("Underscores work fine inside standard verbatim!") return True \end{myVerbatim} \end{document} Gives Which is not exactly the same. The solution I am looking for is to generate similar output as the first one above, but using \begin{myVerbatim}....\end{myVerbatim} to reduce typing. But with restrictions no use or loading listing package no use of external temporary files Any solution that does this will be great. It does not have to use fancyvrb either For an example, solution such as \newtcblisting{myVerbatim}{ colback=yellow!20, % background color colframe=gray, % border color boxrule=0.5pt, % border thickness arc=4pt, % rounded-corner radius boxsep=4pt, % padding left=4pt, right=4pt, top=4pt, bottom=4pt, listing only } Will not work, as this causes listing package to be loaded. TL 2026

I want to make an environment which takes two mandatory arguments, a title and a url, and prints a box, with the title at the top, a QR code of the url on the left, and the url itself at the bottom. The contents of the environment should be printed in the right of the box, wrapping under the qr code if long enough. I've got close. The MWE below creates a command which does this. But: It's not an environment. The tcolorbox tools available make it harder to create an environment with preset content. The qr code is printed, but leaves a thick margin at the top, between the QR code and the box. If the text is short, the QR code doesn't 'push' the bottom of the box down to accommodate it. (all demonstrated by the MWE below). The main issue seems to be floating (or otherwise managing) the QR code inside the box. I'm not sure how to approach this; below I used wrapfig2 because another question I found had success it. It compiles, but it doesn't quite work. How can I achieve what I want? \documentclass{article} \usepackage[skins]{tcolorbox} \usepackage{qrcode} \usepackage{wrapfig2} \usepackage{lipsum} % <title> <link> <description> \NewTotalTColorBox{\mweqrbox}{ m m m }{ enhanced,colback = white,colframe=black,coltitle=black, sharp corners,boxrule = 0.4pt, fonttitle = \itshape, attach boxed title to top text left = { yshift = -0.5\baselineskip-0.5pt, yshifttext = -0.25\baselineskip }, boxed title style={ tile, size = minimal, left = 0.5mm, right = 0.5mm, colback = white, before upper = \strut }, title={#1}, subtitle style = { fontupper = \scriptsize\ttfamily, colback = white, colframe = white, top=0pt, nobeforeafter }, lower separated=false }{% \begin{wrapfigure}{l} \qrcode{#2} \end{wrapfigure} #3 % Description % this is useful because otherwise, with a short description, the % subtitle cuts through the middle of the QR code. \tcblower \tcbsubtitle{#2} } \begin{document} \mweqrbox{Foo}{https://example.com/some/long/path#fragment}% { Some text here. Some text here. Some text here. Some text here. Some text here. Some text here. Some text here. Some text here. Some text here. Some text here. Some text here.} \end{document}

I am trying to create a tabularx table with centered content. Everything works as long as each cell is one column wide. But as long as I add multicolumn cells, the centering is skewed. How do I make the content centered properly? MWE: \documentclass[12pt,a4paper]{book} \usepackage{graphicx} % Required for inserting images \usepackage{float} \usepackage{tabularx} \usepackage[a4paper,hmargin=1.0cm,vmargin=1.5cm]{geometry} \newcolumntype{R}{>{\centering\arraybackslash}X} \renewcommand\tabularxcolumn[1]{m{#1}} \usepackage{multicol} \setlength{\columnsep}{1.0pc} \usepackage{multirow} \begin{document} \begin{figure}[H] \centering \begin{minipage}{1.0\textwidth} \Large \centering \begin{tabularx}{\textwidth}{|R|R|R|R|R|R|R|R|R|R|} \hline 30 & 31 & 32 & 33 & 34 & 35 & 36 & 37 & 38 & 39 \\ \hline 40 & 41 & 42 & 43 & 44 & 45 & 46 & 47 & 48 & 49 \\ \hline 50 & 51 & 52 & 53 & 54 & 55 & 56 & 57 & 58 & 59 \\ \hline 60 & (61) & (64) & (85) & (94) & (140) & (162) & \multicolumn{3}{>{\hsize=3\hsize\linewidth=\hsize}R|}{(\emph{on the right:} 163)} \\ \hline \multicolumn{6}{|>{\hsize=6\hsize\linewidth=\hsize}R|}{(\emph{on the left:} 170)} & & & & \\ \hline \end{tabularx} \end{minipage} \end{figure} \end{document} Result:

I am currently working on a new book and would like to store two different sets of endnotes at the end of the document. One Should go under the Title "Botanical Relevance" and one "Noteworthy Mentions". I have managed at least to set the titles, but I cannot wrap my mind around the formatting. The idea is to predefine two sets of endnotes (one \alph and one \ arabic) with manyfoot and store them in two separate endnote libraries at the end of the document. The endnote libraries should preferably be called with a command like "\theendnotesB" and "\theendnotesN". I tried using "\let\footnoteB=\endnote" and changing it to "\let\footnoteN=\endnote" after having called the first endnote library, but the attempt failed. Any help appreciated. This is the MWE: \documentclass[12pt,draft]{book} \usepackage[ paperwidth=148mm,%242mm, paperheight=210mm, top=17mm, bottom=10mm, inner=15mm, outer=13mm, ]{geometry} \usepackage{nopageno} \usepackage[T1]{fontenc} \usepackage{manyfoot} \usepackage{endnotes} % multifoot Declaration \DeclareNewFootnote{B}[alph] % B = Botanical Relevance \DeclareNewFootnote{N}[arabic] % N = Noteworthy Mentions % How to Create a custom command to store all “B” Notes in one Endnote Library and all “N” Notes in another. \newcommand{\theendnotesB}{ } % not sure how to do this \newcommand{\theendnotesN}{ } % not sure how to do this % Sending "B" footnotes to endnotes library \let\footnoteB=\endnote % this command stores the “B” notes in Endnotes, but also changes them to arabic numbering \begin{document} ...and the Mage picked a white multifaceted flower and said ''Kham\footnoteB{This flower is equivalent to Yarrow (Achillea millefolium) and has the same properties}'' to the stranger, who understood nothing for the moment, but promised to himself quietly that he would learn everything he could from this man, who seemed so strange and yet so resourceful...for he knew that his people were in need of this knowledge\footnoteN{Here it must be mentioned that any man, who strives to become truly wise in the properties of healing plants, is an asset to his people.}.\\ The Moment passed and turned to dust, as everything will do at last, but worry not for life moves on and shows the seeking heart what's strong. %Endnotes Title B \renewcommand{\notesname}{\hphantom{cccccc}Botanical Relevance} %Endnotes B \newpage \begingroup \parindent 0pt \parskip 2ex \def\enotesize{\normalsize} \theendnotes %should probably be a new command → \theendnotesB \endgroup %Endnotes Title N \renewcommand{\notesname}{\hphantom{cccccc}Noteworthy Mentions} \let\footnoteN=\endnote % it was an attempt, but it failed %Endnotes N \newpage \begingroup \parindent 0pt \parskip 2ex \def\enotesize{\normalsize} \theendnotes %should probably be a new command → \theendnotesN \endgroup \end{document} These are the Pages with comments:

Maybe it is a matter of taste, but I think the space between integral sign and integrand is way too large when the kpfonts-otf package is in use: \documentclass{scrartcl} \usepackage{kpfonts-otf} %\usepackage{unicode-math} % loaded automatically by kpfonts-otf \removenolimits{\int} \removenolimits{\oint} \begin{document} \begin{equation} I = \int_0^x S ds \end{equation} \begin{equation} I = \oint_0^x S ds \end{equation} \end{document} This has already been discussed in this question, but I still think the space is not correct. [I am not sure, whether the tags are ok. Pls modify them if necessary.]

I used to glue the dashes to the parenthesis like shown below with pdflatex. \documentclass{scrartcl} \usepackage{kpfonts-otf} \usepackage[babelshorthands=true]{polyglossia} \setdefaultlanguage{german} \begin{document} This is a "~- not necessarily smart~-- text. \end{document} Running with lualatex yields this result (edited): I cannot find a solution in the fine polyglossia manual. How to do it correctly? Edit: The result should like this: with the important aspect, that both dashes are glued to the parenthesis when it comes to a line break.

ChatGPT told me to use \Corresponds to get the "entspricht" symbol with kpfonts-otf, but what a surprise: It is not known to this font. What do I have to take for this symbol. \documentclass{scrartcl} \usepackage{unicode-math} \removenolimits{\int} \setsansfont{KpSans} \setmainfont{KpRoman} \setmathfont{KpMath-Regular} %\DeclareMathOperator{\entspricht}{\mathrel{\Corresponds}} \begin{document} %\begin{equation} %16 \entspricht 2^4 %\end{equation} \begin{equation} 16 \wedgeq 2^4 \end{equation} \begin{equation} 16 \Corresponds 2^4 \end{equation} \end{document} \endinput The last lines of the log file looks like this Missing character: There is no ≙ (U+2259) in font [KpMath-Regular.otf]:mode=ba se;script=math;language=dflt;mathfontdimen=xetex;! ! Undefined control sequence. l.19 16 \Corresponds 2^4 ? BTW: In former times (up to yesterday when I changed to lualatex) I used % \DeclareMathOperator{\entspricht}{\mathrel{\hat{=}}} with kpfonts and was quite happy with it. With kpfonts-otf the result is more than ugly:

Note that the aim of this is to add a new operator to the l3fp module of the LaTeX3 kernel and therefore internal functions and reserved prefixes are used throughout the code. Please use this code with the due caution. I try to add a function and operator to the l3fp module that extracts an item from a tuple. I started with defining a public function and underlying internal functions that leave the relevant item of a tuple in the internal fp representation in the input stream. Placed into \fp_eval:n, this results in the intended output (one could also imagine adding \fp_to_decimal:n to this, so it returns the relevant number directly): \documentclass{article} \begin{document} \ExplSyntaxOn \makeatletter % public function \cs_new:Npn \fp_tuple_item:nn #1#2 { \exp_args:Nee \__fp_tuple_item:nn { \__fp_parse:n {#2} } { \__fp_parse:n {#1} } } % internal functions \cs_new:Npn \__fp_tuple_item:nn #1#2 { \__fp_tuple_item_aux:ww #1#2 } \cs_new:Npn \__fp_tuple_item_aux:ww #1 \__fp_sep: { \__fp_tuple_item_select_aux:nw { \__fp_to_int:w #1 \__fp_sep: } } \cs_new:Npn \__fp_tuple_item_select_aux:nw #1 \s__fp_tuple \__fp_tuple_chk:w #2 \__fp_sep: { \int_compare:nNnTF {#1} < 0 { \__fp_tuple_item_select_aux:nw { \__fp_int_eval:w \__fp_array_count:n {#2} + 1 + #1 \__fp_int_eval_end: } \s__fp_tuple \__fp_tuple_chk:w {#2} \__fp_sep: } { \__fp_tuple_item_select_auxi:nw {#1} #2 \s__fp_stop } } \cs_new:Npn \__fp_tuple_item_select_auxi:nw #1 { \int_compare:nNnTF {#1} = 1 { \__fp_tuple_item_select_auxii:w } { \__fp_tuple_item_select_auxiii:nw {#1} } } \cs_new:Npn \__fp_tuple_item_select_auxii:w #1 \__fp_sep: #2 \s__fp_stop { #1 \__fp_sep: } \cs_new:Npn \__fp_tuple_item_select_auxiii:nw #1#2 \__fp_sep: { \__fp_tuple_item_select_auxi:nw { \__fp_int_eval:w #1 - 1 \__fp_int_eval_end: } } \makeatother \fp_eval:n { \fp_tuple_item:nn { ( 1 , 2 ) } { 1 } } % returns 1 \fp_eval:n { \fp_tuple_item:nn { 2 * ( 1 , 2 ) } { 2 } } % returns 4 \fp_eval:n { \fp_tuple_item:nn { ( 1 , 2 , 3 ) } { -1 } } % returns 3 \ExplSyntaxOff \end{document} So far, so good, but now I want to define a new function operator that can be used in an fp expression. The syntax should be item(n,t) where n is the index of the item and t is the tuple. I looked at the implementation of various other functions in the l3fp module such as round() or rand() and came up with the following relatively straight-forward defintion: \cs_new:Npn \__fp_parse_word_item:N { \__fp_parse_function:NNN \__fp_item_o:Nw ? } \cs_new:Npn \__fp_item_o:Nw ? #1 @ { \exp_after:wN \__fp_item_o:w #1 @ } \cs_new:Npn \__fp_item_o:w { \exp_after:wN \__fp_tuple_item_aux:ww } However, this results in an error as eventually \__fp_parse_after:ww does not see the expected tokens. I checked the expansion process up to this point using the unravel package and I can see that I get something along the following lines (<fp> being the relevant internal fp representation): \__fp_parse_after:ww \s__fp <fp> \__fp_sep: @ \exp:w \exp_end_continue_f:w \__fp_parse_infix_end:N \c__fp_prec_end_int \s__fp_expr_stop \exp_end: Other functions return something similar but without \c__fp_prec_end_int which is exactly what \fp__parse_after:ww wants whose argument defintion is #1 @ \__fp_parse_infix_end:N \s__fp_expr_stop #2. Now, I am lost at this point. I can see that my implementation yields the correct fp representation, but I am unable to find the reason why \c__fp_prec_end_int (along with \exp:w \exp_end_continue_f:w) is left in the stream and what I should do to remove this. Full MWE: \documentclass{article} \begin{document} \ExplSyntaxOn \makeatletter % public function \cs_new:Npn \fp_tuple_item:nn #1#2 { \exp_args:Nee \__fp_tuple_item:nn { \__fp_parse:n {#2} } { \__fp_parse:n {#1} } } % internal functions \cs_new:Npn \__fp_tuple_item:nn #1#2 { \__fp_tuple_item_aux:ww #1#2 } \cs_new:Npn \__fp_tuple_item_aux:ww #1 \__fp_sep: { \__fp_tuple_item_select_aux:nw { \__fp_to_int:w #1 \__fp_sep: } } \cs_new:Npn \__fp_tuple_item_select_aux:nw #1 \s__fp_tuple \__fp_tuple_chk:w #2 \__fp_sep: { \int_compare:nNnTF {#1} < 0 { \__fp_tuple_item_select_aux:nw { \__fp_int_eval:w \__fp_array_count:n {#2} + 1 + #1 \__fp_int_eval_end: } \s__fp_tuple \__fp_tuple_chk:w {#2} \__fp_sep: } { \__fp_tuple_item_select_auxi:nw {#1} #2 \s__fp_stop } } \cs_new:Npn \__fp_tuple_item_select_auxi:nw #1 { \int_compare:nNnTF {#1} = 1 { \__fp_tuple_item_select_auxii:w } { \__fp_tuple_item_select_auxiii:nw {#1} } } \cs_new:Npn \__fp_tuple_item_select_auxii:w #1 \__fp_sep: #2 \s__fp_stop { #1 \__fp_sep: } \cs_new:Npn \__fp_tuple_item_select_auxiii:nw #1#2 \__fp_sep: { \__fp_tuple_item_select_auxi:nw { \__fp_int_eval:w #1 - 1 \__fp_int_eval_end: } } % operator defintion \cs_new:Npn \__fp_parse_word_item:N { \__fp_parse_function:NNN \__fp_item_o:Nw ? } \cs_new:Npn \__fp_item_o:Nw ? #1 @ { \exp_after:wN \__fp_item_o:w #1 @ } \cs_new:Npn \__fp_item_o:w { \exp_after:wN \__fp_tuple_item_aux:ww } \makeatother \fp_eval:n { item ( 1 , ( 1 , 2 ) ) } \ExplSyntaxOff \end{document}

After installing TeX Live 2026, whenever I compile Kaobook in TeXstudio, I keep getting an error similar to the one in the attachment. I’m new to LaTeX. Where can I download the complete, modified Kaobook file? I’m trying to compile using XeLaTeX with Korean text by using \usepackage{kotex}. How should I configure the settings or the cls file? Is there anyone who can help me?

I am typesetting an Arabic document using XeLaTeX and the polyglossia package. I am trying to build a table using the tabularray package. The Problem: Whenever I apply a background color to a specific row using the bg key (e.g., row{1} = {bg=blue!20}), the Arabic text inside that row completely disappears in the output PDF. The text in the other rows (which do not have a background color) renders perfectly fine. It seems like a layering or grouping issue where the bidi package (loaded by polyglossia) conflicts with tabularray's drawing engine, causing the colored box to either cover the text or push the RTL text out of bounds. I have already tried: Removing font=\bfseries from the row settings. Using manual \textbf{} inside the cells. Wrapping the text in \mbox{}. Using \SetCell{bg=blue!20} instead of row{1}. None of these solved the issue; as long as the background color is present, the text vanishes. Minimum Working Example (MWE): \documentclass{article} \usepackage{xcolor} \usepackage{tabularray} % RTL Setup \usepackage{polyglossia} \setmainlanguage{arabic} \setmainfont{Amiri} % Standard Arabic font for testing \begin{document} \begin{center} \begin{longtblr}{ colspec = {|X[c,m,1.6]|X[c,m,1.4]|X[c,m,1.4]|}, hlines, vlines, row{1} = {bg=blue!20, rowsep=5pt}, % The text in this row disappears rowsep=8pt } \textbf{النهاية} & \textbf{التفسير الهندسي} & \textbf{التمثيل البياني} \\ Text appears here & Text appears here & Text appears here \\ \end{longtblr} \end{center} \end{document}

I'm running an antique MacOS (mojave) with MacTeX 2022 installed. The MWE below compiles successfully with XeLaTeX, but with LuaLaTeX, I get the following message: kpathsea: Running mktexpk --mfmode / --bdpi 600 --mag 1+0/600 --dpi 600 WebOMintsGD mktexpk: don't know how to create bitmap font for WebOMintsGD. mktexpk: perhaps WebOMintsGD is missing from the map file. kpathsea: Appending font creation commands to missfont.log. ! error: (file WebOMintsGD) (type 3): font WebOMintsGD at 600 not found ! ==> Fatal error occurred, no output PDF file produced! What does LuaLaTeX want me to do to make this work? %%%%%%%%%%%%%%%%%%%%%%%% \documentclass{memoir} \usepackage{fontspec} \newfontfamily\wb{WebOMints GD} \pagestyle{empty} \begin{document} \wb ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz \end{document}

I'm citing a popular online dictionary: \documentclass{article} \usepackage[natbibapa]{apacite} \begin{filecontents}{\jobname.bib} @inbook {MWOganesson, author = {Merriam-Webster}, title = {Oganesson}, book = {Merriam-Webster.com dictionary}, url = {https://www.merriam-webster.com/dictionary/oganesson} } \end{filecontents} \begin{document} The word ``oganesson'' is stressed on the third syllable \citep{MWOganesson}. \bibliographystyle{apacite} \bibliography{\jobname} \end{document} In the output, the title is printed as "Oganesson.." with two periods. Is a workaround known?

[continuation of this closed question from today] I would like to have the limits above and below the integral, not on the right side. Using pdflatex I realized this with the shown options for amsmath. What do I have to do when using lualatex? \documentclass{scrartcl} %\usepackage[intlimits,sumlimits]{amsmath} % used w/ pdflatex \usepackage{unicode-math} %\setsansfont{KpSans} %\setmainfont{KpRoman} %\setmathfont{KpMath-Regular} \begin{document} \begin{equation} E = \int_0^x m d c \end{equation} \end{document} With the \removenolimits macro the limits are on the right place (for me on displayed equations). When I compare the results with pdflatex & kpfonts with lualatex & kpfonts-otf I notice two points: (1) The slanted integral sign looks better (for me). But this is surely the decision of the designer. That's ok for me. (2) The distance between the integral sign and the integrand is far too long. Of course I can modify the \int macro, but maybe there is a better way?!

I'm using setlength\itemsep{..} to change the space between subitems of a customized list. The problem is that the last "subitem" is too close to the second "main item" (see picture). This is quite ugly and unbalanced. Is there a way to automatically increase the spacing (other than setlength\itemsep{..} or \vspace) that would fit in this case? \documentclass{article} \usepackage{enumitem} \newlist{questions}{enumerate}{3} \setlist[questions,1]{font=\bfseries, label = Exercise~\arabic*~:, ref = \arabic*, align = left, wide=0cm} \setlist[questions,2]{label=\bfseries \arabic*),align = right, leftmargin=1.2cm} \begin{document} \begin{questions} \item Question? \begin{questions} \item Subquestion 1 \item Subquestion2: nice spacing \end{questions} \item More Questions? \begin{questions} \item Subquestion 1 \item Subquestion2 \end{questions} \end{questions} \vspace{2cm} \begin{questions} \item Question? \begin{questions}\setlength\itemsep{3em} \item Subquestion 1 \item Subquestion2 : bad spacing \end{questions} \item More Questions? \begin{questions} \item Subquestion 1 \item Subquestion2 \end{questions} \end{questions} \end{document}

I would like to have the limits above and below the integral, not on the right side. Using pdflatex I realized this with the shown options for amsmath. What do I have to do when using lualatex? \documentclass{scrartcl} \usepackage{fontspec} %\usepackage[intlimits,sumlimits]{amsmath} \usepackage{unicode-math} %\setsansfont{KpSans} %\setmainfont{KpRoman} %\setmathfont{KpMath-Regular} \begin{document} \begin{equation} E = \int_0^x m d c \end{equation} \end{document}

I'm trying to write a set of course notes with LaTeX's accessibility tagging on, but I want to change up the chapter and sections headings. The titlesec package is incompatible, so I'm using the \EditInstance command, based on the answers to this previously asked question: Space between top of text area and chapter heading using \EditInstance formating (ruled headformat) I copy-pasted MWE#2 from that answer into my LaTeX editor, re-copied below for completeness. I'm compiling with TexLive 2026's version of lua-latex, which reports itself as ' LuaHBTeX, Version 1.24.0 (TeX Live 2026) ', all packages are up-to-date in tlmgr. The issue is that I get several errors of the form "LaTeX template: Unknown template key 'after-sep'." (I also get the same error for before-sep and decls, as well as "LaTeX template: The instance 'hang' of type 'headformat' is unknown.") I'd like to make this MWE work on my system (so I can modify it to my needs), but I can't for the life of me figure out what is going on. I haven't been able to find any good documentation online about the \EditInstance command, I'm basically just going off of what I can learn from Stack Exchange questions. Any help is appreciated! % Source - https://tex.stackexchange.com/q/760989 % Posted by polaren % Retrieved 2026-08-10, License - CC BY-SA 4.0 \DocumentMetadata{ lang = sv, pdfversion = 2.0, pdfstandard = ua-2, tagging = on, } \documentclass[11pt,a4paper,twoside,final]{report} \usepackage[margin=25mm,top=24mm,bottom=24mm,nomarginpar,nohead,footskip=11mm]{geometry} \usepackage{showframe}\renewcommand\ShowFrameLinethickness{0.05mm} \usepackage[document]{ragged2e} % Needed for compilation. \usepackage{hyperref} % Needed to pass VeraPDF. \hypersetup{ pdftitle={MWE}, pdfauthor={polaren}, pdfsubject={First question to LaTeX Stack Exchange.}, } \EditInstance{heading}{chapter}{ number-format=\makebox[12mm][l]{\theheading.}, number-decls=\sffamily\fontsize{14pt}{16pt}\selectfont, title-decls=\sffamily\fontsize{14pt}{16pt}\selectfont, after-sep=0mm, before-sep=0mm, start-code=\clearpage\vspace*{-10.75mm}\rule{\textwidth}{0.1mm}\newline\vspace*{-18mm}, final-code=\vspace*{-5mm}\rule{\textwidth}{0.1mm}\newline\vspace*{0mm}, headformat-instance=hang, decls=\raggedright\parindent 0pt\rmfamily } \setlength{\parskip}{6pt plus 1pt minus 1pt} %\setlength{\parskip}{0pt} \usepackage{kantlipsum} \begin{document} \chapter*{Unnumbered Chapter} Test. \chapter{Title of Chapter} \kant[1] \end{document}

This is a follow-up question, based on the solutions found in Is There a Simpler Way to Use Lettrines in a Verse Environment without Invoking a Subroutine? In an attempt to help a friend compose a book of her poems, I have tried to take advantage of the lessons above, in particular the last one using the lettrine method. However when I change the poem (seemingly without any other change), I get the two first lines severely indented and the output is not visually satisfactory. I could not explain the reason for this and even less find a correction. \documentclass[a4paper,10pt]{article} \usepackage{lettrine} \usepackage{verse} \begin{document} \poemtitle{Complete solution via {\em lettrine} methods} \begin{verse}[8cm] \lettrine[lhang=1.5,nindent=0em]{M}{aking} a famine where abundance lies,\\> Thy self thy foe, to thy sweet self too cruel.\\ Thou that art now the world's fresh ornament, \\ And only herald to the gaudy spring, \\ Within thine own bud buriest thy content, \end{verse} \bigskip \poemtitle {The Sea Bell} \begin{verse}[8cm] \lettrine[lhang=1.5,nindent=0em]{I}{walked} by the sea,\\> and there came to me,\\ as a star-beam on the wet sand,\\ a white shell like a sea-bell;\\ trembling it lay\\ in my wet hand.\\ In my fingers shaken I heard waken\\ a ding within, by a harbour bar\\ a buoy swinging, a call ringing\\ over endless seas,\\ faint now and far\ldots \end{verse} \end{document

I am trying to reproduce a 3D figure from a mathematics book in LaTeX using TikZ/PGFPlots. The figure shows two surfaces and their intersection. The two surfaces are given by x^2 + xy - y - 3z = 0 and 2x^2 + 3xy - 2y - 3z = 0. I plotted both surfaces directly from their equations and also added their intersection curve. However, the shape and especially the intersection curve in my output look quite different from the figure in the book, even though I am using the same equations. I am not sure whether the difference is caused by the viewing angle, the plotting ranges, the parametrization of the intersection curve, or something else. Here is my current code: \documentclass[border=5pt]{standalone} \usepackage{pgfplots} \usepackage{tikz} \pgfplotsset{compat=1.18} \begin{document} \begin{tikzpicture} \begin{axis}[ view={120}{25}, axis lines=none, xmin=-2.5, xmax=2.5, ymin=-2.5, ymax=2.5, zmin=-5, zmax=5, width=11cm, height=8cm, ticks=none, ] %================================================ % GREEN SURFACE % 2x^2 + 3xy - 2y - 3z = 0 %================================================ \addplot3[ surf, shader=interp, colormap={greenmap}{ color(0cm)=(green!15); color(1cm)=(green!35) }, colormap name=greenmap, domain=-2:2, y domain=-2:2, samples=35, samples y=35, opacity=0.65, ] { (2*x^2 + 3*x*y - 2*y)/3 }; %================================================ % BLUE SURFACE % x^2 + xy - y - 3z = 0 %================================================ \addplot3[ surf, shader=interp, colormap={bluemap}{ color(0cm)=(blue!15); color(1cm)=(blue!35) }, colormap name=bluemap, domain=-2.2:2.2, y domain=-2.2:2.2, samples=30, samples y=30, opacity=0.55, ] { (x^2 + x*y - y)/3 }; %================================================ % INTERSECTION CURVE % gamma(t) = % ( t, -t^2/(2t-1), t^3/(3(2t-1)) ) %================================================ \addplot3[ very thick, red, samples=100, domain=-2.2:0.35, variable=\t, ] ( {\t}, {-\t^2/(2*\t-1)}, {\t^3/(3*(2*\t-1))} ); \addplot3[ very thick, red, samples=50, domain=0.65:2.2, variable=\t, ] ( {\t}, {-\t^2/(2*\t-1)}, {\t^3/(3*(2*\t-1))} ); \end{axis} \end{tikzpicture} \end{document} The book's figure has a noticeably different orientation and shape for the two surfaces and their intersection. The book's figure looks like this: My current output looks like this: Could someone please explain what is causing this difference and how I can modify my PGFPlots code to obtain a figure that looks like the one in the book? In particular, I would like to know whether I should change the view angles, the plotting domains, or the parametrization of the intersection curve.

I would like to know if there is both a correct and "nice" way to use punctuation in systems of equations. I have tried \documentclass{article} \usepackage{amsmath,array} \usepackage{systeme} \begin{document} This looks correct but ugly $$ \systeme{x+y=7, x-y = 3}\,. $$ What about $$ \systeme{5x+2y=7\, , 5x-2y= 3\,. } $$ \end{document} The first solution is what I would expect to be correct but it's quite ugly. The second solution does not display the comma after the first equation. Is there a rule for punctuation after a system? If yes, how to do it with this command?

I have an arbitrary function which outputs a 1D parametric triple in Asymptote. I want to find the Frenet basis of it at a point without resorting to coding derivatives for every individual function. My goal is to have a function which gives me the approximated Frenet basis of any triple-producing 1D function at a specific input. import three; import graph3; unitsize(3cm); triple curve(real t) { real t1 = 3.14 * t; return ( cos(t), sin(t), t ); } path3 f = graph(curve, 0, 2*pi, n=20); draw(f); /* I am attempting to make a function which accepts an arbitrary triple function, and an arbitrary parameter value. It's goal is to produce the matrix containing the position vector, the tangent vector, the normal vector, and the binormal vector - the so called Frenet basis. How can I do this for an arbitrary function. My goal is to not have to write individual matrix functions for every parametric curve. I'd much rather just input the curve's function and a parameter-value and be given the orthonormalized Frenet basis. */ real[][] T(triple function, real param) { triple df(real t) { return (1/0.04)*(function(t+0.02)-function(t-0.02)) } return {{df(param)},{},{},{}} }; I was able to achieve it in Lua, since my software enables verbose input. \documentclass[tikz, border=1cm]{standalone} \usepackage{lua-tikz3dtools} \begin{document} \begin{tikzpicture} \useasboundingbox[scale=0.5] (-5,-5) rectangle (5,5); \ltdtsetobject[ name=objs, object={ return { view = Matrix.zyzrotation(Vector:new{7*pi/6,pi/6,pi/2}), alpha = function(t) return Vector:new{sin(t)+2*sin(2*t),cos(t)-2*cos(2*t),-sin(3*t),1} end, frenet = function(surf, param) local tangent = function(s, p) return s(p + 0.02):hsub(s(p - 0.02)):hscale(1 / 0.04):hnormalize() end local normal = function(s, p) local tang = function(t) return tangent(s, t):hnormalize() end return tangent(tang, p) end local T = tangent(surf, param):hnormalize() local N = normal(surf, param):hnormalize() local B = T:hcross(N):hnormalize() local P = surf(param) local RE = Matrix:new{T, N, B, P} % currently projective, needs to be affine (at this time, at leat) RE[1][4] = 0 RE[2][4] = 0 RE[3][4] = 0 return RE end } } ] \ltdtappendlight[v={return Vector:new{1,1,1,1}}] \iffalse \ltdtappendcurve[ uparams={return Vector:new{0,tau,100}}, v={ return objs.alpha(u) :multiply(objs.view) }, draw options={return "draw, line cap=round"} ] \fi \ltdtappendsurface[ uparams={return Vector:new{0,tau,200}}, vparams={return Vector:new{0,tau,10}}, v={ return Vector:new{0, cos(v)/5, sin(v)/5, 1} :multiply(objs.frenet(objs.alpha, u)) :multiply(objs.view) }, fill options={return "fill=ltdtbrightness"} ] \ltdtdisplaysimplices \end{tikzpicture} \end{document} I also did it ad-hocly in tikz... https://chat.stackexchange.com/transcript/message/69138959#69138959