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What is the reason of why I can haven't the colors? \documentclass{article} \usepackage{xcolor} \usepackage{lucide-icons} \begin{document} \lucideicon{alarm-clock-check} \textcolor{red}{\lucideicon{alarm-clock-check}} \end{document}

I have the following example: \documentclass{article} \everymath{\displaystyle} \usepackage{xcolor} \usepackage{lipsum} \usepackage{amsmath} \usepackage{zref-clever}%<- \usepackage{hyperref} \hypersetup{linkbordercolor=magenta} \begin{document} \section{Mathematical Expressions} \begin{equation} a^2+b^2=c^2 \label{eqn} \end{equation} \lipsum[1][1-3] cite the eqn at here \zcref{eqn} and $\iint x^2+y^2 \, dx \, dy$ lalala \lipsum[1][1-3] cite the eqn at here \ref{eqn} and $\iint x^2+y^2 \, dx \, dy$ lalala \lipsum[1][1-3] cite the eqn at here \eqref{eqn} and $\iint x^2+y^2 \, dx \, dy$ lalala \lipsum[1][1-3] \end{document} Is that expected behavior of the clickable box's depth here? Any suggestions on fixing that?

How to make rounded corner and curve (..controls?) for this path (or similar)? \documentclass[margin={1.5cm 1,5cm 1.5cm 1.5cm}]{standalone} \usepackage{tikz} \begin{document} \begin{tikzpicture} \fill[cyan] (0,0)--(2,0)--(5,2)--(7,3)--(6,4)--(4,7)--(2,7)--(.5,5)--(0,2)--cycle; \end{tikzpicture} \end{document}

I have the following code: \documentclass{l3doc} \usepackage[match]{luatexja-fontspec} % lualatex \setmonojfont{FandolKai-Regular} % \ltjsetparameter{xkanjiskip=0pt plus 0pt minus 0pt} \begin{document} \begin{function}{\mycmd} \begin{syntax} \tn{mycmd}\oarg{option}\Arg{汉字}\Arg{说明} \end{syntax} \end{function} In the main text, I still want the \textbf{auto spacing}: 中文text中文 In the main text, I still want the \textbf{auto spacing}: 中文 text 中文 \end{document} If I uncommented the \ltjsetparameter{xkanjiskip=0pt plus 0pt minus 0pt}, that appeared to be: If I only want the \ltjsetparameter{xkanjiskip=0pt plus 0pt minus 0pt} work for all the l3doc commands, to show \mycmd{<汉字>}{<说明>} without any extra spacing, but in the documentation, it add the spacing automatically, what is the best practice here to interact with luatexja and the l3doc? I have no good idea to hook all the l3doc commands(and that is not elegant, too).

I am debugging somebody else's .tex file. The first line is: %&xx I also see files xx.fmt and xx.tex in the same folder. What does this line mean ? Is it like \input ? But apparently faster (I guess it includes a pre-compiled represemtation of the .tex file),is it ? The file xx.tex loads a number of packages, which makes it slow to compile. I guess the intention might have been to speed up the compilation. I am trying to compile the file that I am debugging with pdflatex (MikTex on Windows-10) . Strangely, pdflatex does not even produce a .log file -- Iguess it fails before that?

I'm trying to write a multi-file using simultaneously the subfiles and fancyhdr packages. My main.tex file is \documentclass[a4paper]{article} \usepackage{graphicx} % Required for inserting images \graphicspath{{images/}} \usepackage[utf8]{inputenc} \usepackage[T1]{fontenc} \usepackage[brazil]{babel} \usepackage[top=190pt,head=80pt,headsep=50pt,bottom=110pt,footskip=50pt]{geometry} \usepackage{fancyhdr} \usepackage{array} \usepackage{subfiles} \title{Title} \author{Author} \date{Somewhere in the past} \begin{document} \maketitle \newpage \section{Introduction} Odd stuffs \section{Good morning} \subfile{sections/section.tex} \end{document} and the section.tex file is \documentclass[../main.tex]{subfiles} \graphicspath{{\subfix{../images/}}} \begin{document} \pagestyle{fancy} \fancyhf{} \fancyhead[C]{ \huge \renewcommand{\arraystretch}{1.4} \begin{tabular}{|>{\centering}m{0.19\textwidth}|m{0.74\textwidth}<{\centering}|} \hline {\textbf{N-0}} & {\textbf{Header Title}} \\ \hline \end{tabular} } \fancyfoot[C]{% \begin{tabular}{|m{0.5\textwidth}|>{\centering}m{0.2\textwidth}|m{0.2\textwidth}<{\centering}|} \hline {Laboratory of Strange Stuff & Version 1 & {Page \thepage}} \\ \hline {{Stranger Stuffs} & {a} & {b} } \\ \hline \end{tabular} } \textbf{Hello world!} \end{document} When I compile the sub-file section.tex, the fancyhdr package runs fine and I get a customized header and footer. When I compile main.tex, the header and footer are absent. Is there a way to customize the header this way? I want to create a lot of sub-files, all with the same header format, but each one with its own header title.

I'm running into a rather bizarre issue with \ShellEscape from the shellesc package. When running the following command with both CMD and PowerShell on Windows 11 curl.exe -G "https://simbad.u-strasbg.fr/simbad/sim-tap/sync" --data-urlencode "REQUEST=doQuery" --data-urlencode "LANG=ADQL" --data-urlencode "FORMAT=text" --data-urlencode "QUERY=SELECT dec, ra FROM basic WHERE main_id = 'NGC2024'" -o query.txt I get the expected output in the .txtfile dec | ra -------------------|----------------- -1.8416666666666668|85.42916666666667 However, when I run it using \ShellEscape (basically \immediate\write18 with pdflatex), the request fails due to the single quote chars around NGC2024 being gobbled, resulting in a non-TeX-related error. Using LuaLaTeX with os.execute does not fix this issue. I also tried replacing ' with %27 and swapping single quote and double quote chars with no effect. Placing the command in a .bat file and writing \ShellEscape{query.bat} does work, however. I highly suspect the error comes from the interaction of \write18 with my machine, but I'm still confused as to how to fix it. MWE: % arara: pdflatex: { shell: true } \documentclass{article} \usepackage{shellesc} \ShellEscape{% curl.exe -G "https://simbad.u-strasbg.fr/simbad/sim-tap/sync" --data-urlencode "REQUEST=doQuery" --data-urlencode "LANG=ADQL" --data-urlencode "FORMAT=text" --data-urlencode "QUERY=SELECT dec, ra FROM basic WHERE main_id = 'NGC2024'" -o query.txt } \begin{document} Test \end{document} Log file: This is pdfTeX, Version 3.141592653-2.6-1.40.29 (TeX Live 2026) (preloaded format=pdflatex 2026.3.7) 15 APR 2026 15:16 entering extended mode \write18 enabled. %&-line parsing enabled. **query-astro.tex (./query-astro.tex LaTeX2e <2025-11-01> L3 programming layer <2026-01-19> ...

I need to set several different images as background images on several slides respectively in a Beamer document. The usual way to set the background is by \usebackgroundtemplate{}. But my template is already using this command to define its own title bar styles. It works like \usebackgroundtemplate{\input{theme/background}} where theme/background.tex contains just one tikzpicture environment. If I make several copies of theme/background.tex and add \node[opacity=0.4] at (current page.center) { \includegraphics[width=\paperwidth,height=\paperheight]{<path to image>} }; to each of them, it actually works. But this is inconvenient. Are there any better ways to do this? I provide a MWE on Overleaf.

Muzimuzhi has extended the dim feature in tkz-euclide here: However, not all the segments are long enough to label distance "inside", in some case, I need the following "invert"-dim feature: \documentclass[border=5pt]{standalone} \usepackage{tkz-euclide} \usepackage{fourier} \begin{document} \begin{tikzpicture} \tkzDefPoints{0/0/O,3/0/A,1/1/A2,.5/2/C2} \tkzDefRectangle(A2,C2)\tkzGetPoints{B2}{D2} \tkzDrawPolygon[thick,black,fill=yellow!50](A2,B2,C2,D2) \tkzLabelSegment[below](A2,B2){$t$} \draw[thick](A2) --+(0,-.5cm) ++(0,-.25cm) coordinate(tmpA) (B2) --+(0,-.5cm) ++(0,-.25cm) coordinate(tmpB); \draw[thick,latex-] (tmpB) -- +(-.4cm,0); \draw[thick,latex-] (tmpA) -- +(.4cm,0); %%%%%%%%%%%%%% \tkzDrawSegment[thick,dim style/.append style={red,dash pattern={on 2pt off 2pt}},dim={$a$,-.5cm,inner xsep=3pt}](O,A) %%%%%%%%%%%%%% \end{tikzpicture} \end{document} I have not quite familiar with pgf macros, I wonder whether that is possible to learn from muzimuzhi's code to support the "invert"-dim feature, to label these kind of segments distance from the two-side inwards more elegantly?

I'm using $\widehat{.}$ and $\widetilde{.}$ in my text for ordinals. As I'm sometimes using subscripts I decided to just always go with these instead of $\hat{.}$ or $\tilde{.}$ as $\hat{x_{n+1}}$ doesn't look good at all. Furthermore, the wide versions look noticably different from the regular ones, such that I would consider it bad notation to switch between both. I only treat \widehat in the following, but the problems I mention also arise with widetilde. Problem 1) Even for ordinals \widehat{.} interferes with brackets (and \hat{.} too, for that matter). I tried to be smart and simply define a new command \what{.} using mathop, mathbin etc. but only \newcommand{\what}[1]{\mathpunct{\widehat{#1}}} fixes the bracket interference (kind of). It's not a solution though, as it interferes with the spacing of \what{t}\in\what{S} and \what{t}', and the space added is not equally distributed. Question 1) Is there a solution here that fixes the spacing issue of \widehat{.} with brackets, while not interfering with \what{t}\in\what{S} and \what{t}'? Problem 2) Defining an equivalence relation on my widehat-versions, I thought \widehat{=} would be a good idea - intuitive notation, at least for me. However, here the spacing again becomes problematic, when comparing t=t to t \widehat{=} t. I figured from one of egreg's answers that I can fix this by defining \newcommand{\whrel}[1]{\mathrel{\widehat{#1}}} and this indeed works. Question 2) Answers to Question 1) will likely not fix t \widehat{=} t. Do I really need to define different commands? I am using \newcommand{\quasiequal}{\whrel{=}}, which I don't intend to change, so this is more of a general question. Is there nothing like a \mathwhatever{.} that specifies "take the spacing of whatever you're using widehat on, and potentially add equal spacing on both sides to keep brackets at bay"? If so, why? Here is a MWE: \documentclass{article} \newcommand{\what}[1]{\mathpunct{\widehat{#1}}}% \newcommand{\wtil}[1]{\mathpunct{\widetilde{#1}}}% %\mathord, \mathop etc. don't work for keeping brackets at bay \newcommand{\whrel}[1]{\mathrel{\widehat{#1}}}%for relations \newcommand{\whord}[1]{\mathord{\widehat{#1}}}%for ordinals \begin{document} hat: $(\hat{t})$ bracket interference. Also, compare $t=t$ to $t \hat{=} t$. widehat: $(\widehat{t})$ bracket interference. $\widehat{t}\in\widehat{S}$, $\widehat{t}'$ look fine. But $t=t$, $t \widehat{=} t$. what: Fixes $(\what{t})$ kinda. But $t=t$, $t \what{=} t$, $t\in S$, $\what{t}\in\what{S}$, $t'$, $\what{t}'$. wtil: Fixes $(\wtil{t})$ kinda. But $t=t$, $t \wtil{=} t$, $t\in S$, $\wtil{t}\in\wtil{S}$, $t'$, $\wtil{t}'$. whrel: Fixes $t \whrel{=} t$. whord: Keeps $\whord{t}\in\whord{S}$ and $\whord{t}'$ but doesn't fix $(\whord{t})$. \end{document}

/alaligne (new line space for system score) not working on tikzpicture environment. The basic code is as follow: \documentclass[% border={35pt 100pt 150pt 5pt},% left bottom right top varwidth]{standalone} % ========== PAQUETES ========== \usepackage{tikz} \usetikzlibrary{arrows.meta,calc} %LIBRERIA PARA LAS FORMAS \usetikzlibrary{quotes} \usetikzlibrary{shapes} \usetikzlibrary{fit,positioning} \usetikzlibrary{arrows.meta} \usetikzlibrary{decorations} \usepackage{amsmath}% \usepackage{musicography}% \usepackage{musixtex}% \input musixlyr% \usepackage{xcolor}% \xdefinecolor{red-undar}{RGB}{179,35,79} \begin{document}% \begin{tikzpicture} \node[anchor=north west, inner sep=0pt] (score) at (0,0) {% \begin{music}% \resetlyrics% \font\A=phvb8t at 10pt% \font\B=phvb8t at 8pt% \setsongraise1{-1.5mm}% \staffbotmarg3\Interligne% \setclef1\treble% \nobarnumbers% \nostartrule% %\startextract% \startpiece%\addspace\afterruleskip% % AQUI EMPIEZOOO \Notes\zw{h}\hu{j}\qsk\hu{l}\en\bar% \Notes\zw{f}\hu{k}\qsk\hu{j}\en\bar% \Notes\zw{g}\hu{i}\sk\en\setdoublebar\bar% \Notes\zw{h}\hu{m}\qsk\hu{l}\en\bar% \Notes\zw{f}\hu{k}\qsk\hu{j}\en\bar\setdoublebar% \Notes\zw{g}\hu{i}\sk\en\alaligne%%\setdoublebar\bar% \Notes\zw{b}\hu{g}\qsk\hu{f}\en\bar% \Notes\zw{c}\hu{e}\qsk\hu{g}\en\setdoublebar\bar% \Notes\zw{g}\hu{i}\qsk\hu{k}\en\bar% \Notes\zw{c}\hu{l}\qsk\hu{n}\en\setdoublebar% \endpiece% %\endextract% \end{music}% }; % CURVA 1 % \draw[line width=0.9pt, color=red-undar] % ($(score.north west)+(-1.1cm,-0.7cm)$) % punto INICIO (nota arriba) % .. controls % ($(score.north west)+(-1.7cm,-1.2cm)$) % punto control 1 (curva izquierda) % and % ($(score.north west)+(-1.9cm,-1.0cm)$) % punto control 2 (curva izquierda) % .. % ($(score.north west)+(-2.0cm,-1.1cm)$); % punto FIN (nota abajo) % % % CURVA 2 % \draw[line width=0.9pt, color=red-undar] % ($(score.north west)+(0.6cm,-0.9cm)$) % punto INICIO (nota arriba) % .. controls % ($(score.north west)+(0.5cm,-1.1cm)$) % punto control 1 (curva izquierda) % and % ($(score.north west)+(0.2cm,-1.2cm)$) % punto control 2 (curva izquierda) % .. % ($(score.north west)+(-0.1cm,-1.2cm)$); % punto FIN (nota abajo) % % % CURVA 3 % \draw[line width=0.9pt, color=red-undar] % ($(score.north west)+(4.1cm,-0.7cm)$) % punto INICIO (nota arriba) % .. controls % ($(score.north west)+(3.8cm,-1.0cm)$) % punto control 1 (curva izquierda) % and % ($(score.north west)+(3.6cm,-1.0cm)$) % punto control 2 (curva izquierda) % .. % ($(score.north west)+(3.2cm,-1.1cm)$); % punto FIN (nota abajo) % % % CURVA 4 % \draw[line width=0.9pt, color=red-undar] % ($(score.north west)+(5.8cm,-0.9cm)$) % punto INICIO (nota arriba) % .. controls % ($(score.north west)+(5.6cm,-1.1cm)$) % punto control 1 (curva izquierda) % and % ($(score.north west)+(5.4cm,-1.2cm)$) % punto control 2 (curva izquierda) % .. % ($(score.north west)+(5.1cm,-1.2cm)$); % punto FIN (nota abajo) % % % CURVA 5 % \draw[line width=0.9pt, color=red-undar] % ($(score.north west)+(9.2cm,-1.3cm)$) % punto INICIO (nota arriba) % .. controls % ($(score.north west)+(9.1cm,-1.5cm)$) % punto control 1 (curva izquierda) % and % ($(score.north west)+(8.7cm,-1.6cm)$) % punto control 2 (curva izquierda) % .. % ($(score.north west)+(8.4cm,-1.6cm)$); % punto FIN (nota abajo) % % % CURVA 6 % \draw[line width=0.9pt, color=red-undar] % ($(score.north west)+(11.0cm,-1.2cm)$) % punto INICIO (nota arriba) % .. controls % ($(score.north west)+(10.8cm,-1.4cm)$) % punto control 1 (curva izquierda) % and % ($(score.north west)+(10.5cm,-1.5cm)$) % punto control 2 (curva izquierda) % .. % ($(score.north west)+(10.2cm,-1.5cm)$); % punto FIN (nota abajo) % % % CURVA 7 % \draw[line width=0.9pt, color=red-undar] % ($(score.north west)+(12.9cm,-0.8cm)$) % punto INICIO (nota arriba) % .. controls % ($(score.north west)+(12.8cm,-1.0cm)$) % punto control 1 (curva izquierda) % and % ($(score.north west)+(12.4cm,-1.2cm)$) % punto control 2 (curva izquierda) % .. % ($(score.north west)+(12.0cm,-1.2cm)$); % punto FIN (nota abajo) % % % CURVA 8 % \draw[line width=0.9pt, color=red-undar] % ($(score.north west)+(14.6cm,-0.6cm)$) % punto INICIO (nota arriba) % .. controls % ($(score.north west)+(14.5cm,-1.1cm)$) % punto control 1 (curva izquierda) % and % ($(score.north west)+(14.2cm,-1.4cm)$) % punto control 2 (curva izquierda) % .. % ($(score.north west)+(13.9cm,-1.5cm)$); % punto FIN (nota abajo) % % \node[anchor=south west] at ($(score.north west)+(1.6cm, -0.6cm)$) % {\small\textbf{Etc.}}; % % \node[anchor=south west] at ($(score.north west)+(6.9cm, -0.6cm)$) % {\small\textbf{Etc.}}; % % \node[anchor=south west] at ($(score.north west)+(0.0cm, -0.2cm)$) % {\small\textbf{a)}}; % % \node[anchor=south west] at ($(score.north west)+(5.1cm, -0.2cm)$) % {\small\textbf{b)}}; % \\ % \node[anchor=south west] at ($(score.north west)+(9.5cm, -0.2cm)$) % {\small\textbf{c)}}; % \node[anchor=south west] at ($(score.north west)+(13.1cm, -0.2cm)$) % {\small\textbf{d)}}; % PUNTOS DE REFERENCIA %\fill[red] ($(score.north west)+(4.4cm,-0.9cm)$) circle (1pt); % INICIO %\fill[blue] ($(score.north west)+(0.5cm,-1.2cm)$) circle (1pt); % FIN %\fill[green] ($(score.north west)+(14.5cm,-0.9cm)$) circle (1pt); % CONTROL 1 %\fill[green] ($(score.north west)+(14.2cm,-1.1cm)$) circle (1pt); % CONTROL 2 \end{tikzpicture} \end{document}% The current output is as follow:

Followup to my previous question on "How to show section slides in ltx-talk?" I would like the depth-2 (sections and subsections) table of contents to be shown at the beginning of every subsection. The MWE below incorporates @cfr's first solution from the previous question, but this solution has the undesirable behavior of highlighting all subsection. Is there a way to highlight just the current subsection? \DocumentMetadata{ lang = de, pdfstandard = ua-2, pdfstandard = a-4f, tagging=on, tagging-setup={math/setup=mathml-SE} } \documentclass{ltx-talk} \EditInstance{footer}{std}{ element-order = {title, subtitle, framenumber} } \AddToHook{cmd/section/after}{% \begin{frame} \tableofcontents \end{frame}% } \AddToHook{cmd/subsection/after}{% \begin{frame} \tableofcontents \end{frame}% } \title{My talk} \subtitle{I want to show sections} \institute{University of Stack Exchange} \date{} \begin{document} \begin{frame} \maketitle \end{frame} \section{Motivation} \begin{frame}\frametitle{Here is a frame title} Some text. \end{frame} \section{Real talk} \subsection{Part 1} \begin{frame}\frametitle{Here is a frame title} Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. \end{frame} \subsection{Part 2} \begin{frame}\frametitle{Here is a frame title} Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. \end{frame} \end{document}

It is possible that either the package does not behave as I expect, or I am misunderstanding how to use it correctly. According to the manual, the inequality 3x + 2y - 6 >= 0 should represent the half-plane above the line 3x + 2y - 6 = 0, i.e., the region containing points such as (0,3). However, in my code the line is drawn correctly (it passes through (0,3) and (2,0)), but the shaded region does not match the expected half-plane: it appears on the opposite side of the line. What am I doing wrong when using \LinearInequality? Is it a sign convention issue, an internal convention of the package, or do I need to rewrite the expression in a different form to obtain the correct shaded region? \documentclass{article} \usepackage{tkz-grapheur} \begin{document} \begin{GraphTikz}[ x=1cm, y=1cm, Xmin=-3,Xmax=3, Ymin=-3,Ymax=3 ] \DrawAxisGrids[Font=\small]{auto}{auto} \LinearInequality[color=pink,hatch={north east lines}]{3x+2y-6}{>=0} \end{GraphTikz} \end{document}

I'm using a per-chapter bibliography. I would like to disregard the margin note spacing, and make full use of the page. Using a two page layout is making this hard. This is my macro, but the \checkoddpage is not working I don't know why. \newcommand{\insertChapterBibliography}{% % 1. Sync the page check without forcing a new page \strictpagecheck \checkoddpage % 2. Identify the distance from the left edge of the paper to the text block. % LaTeX measures this as 1 inch + \oddsidemargin (or \evensidemargin). % To get back to exactly 1 inch, we shift by exactly -\sidemargin. \ifoddpage \def\leftshift{-\oddsidemargin} \else \def\leftshift{-\evensidemargin} \fi % 3. Apply the shift using standard [left][right] logic. % We want the final width to be \headwidth. % The math for the right offset to reach \headwidth is: % RightOffset = \linewidth - \headwidth - \leftshift \begin{adjustwidth}{\leftshift}{\dimexpr\linewidth-\headwidth-\leftshift\relax} \begin{multicols}{2} \bibliographystyle{alpha} \bibliography{main} \end{multicols} \end{adjustwidth} } I can try to provide a minimal working example, but I'm not sure how, with all these citations… biblio.tex \documentclass[twoside]{book} \usepackage[includemp, inner=1in, outer=10mm, marginparwidth=161pt, showframe]{geometry} \usepackage{fancyhdr} \usepackage{multicol} \usepackage{changepage} \usepackage{etoolbox} \usepackage{lipsum} \usepackage[sectionbib]{chapterbib} \pagestyle{fancy} \setlength{\headwidth}{468pt} \AfterEndPreamble{% \patchcmd{\thebibliography}{\section*{\bibname}}{\relax}{}{}% \patchcmd{\thebibliography}{\section*{\refname}}{\relax}{}{}% } \newcommand{\insertBib}{% \strictpagecheck\checkoddpage \ifoddpage \def\lshift{-\oddsidemargin} \else \def\lshift{-\evensidemargin} \fi \begin{adjustwidth*}{\lshift}{\dimexpr\linewidth-\headwidth-\lshift\relax} \begin{multicols}{2} \scriptsize \bibliographystyle{alpha} \bibliography{biblio} \end{multicols} \end{adjustwidth*} } \begin{document} \include{odd} \include{even} \end{document} biblio.bib @book{key1, author = {Author, A.}, year = {2001}, title = {Title One}, publisher = {Publisher}, } @book{key2, author = {Writer, B.}, year = {2002}, title = {Title Two}, publisher = {Publisher}, } odd.tex \chapter{Odd page bibliography} \lipsum[1-2] \cite{key1} \cite{key2} \insertBib even.tex \chapter{Even page bibliography} \lipsum[1-4] \cite{key1} \cite{key2} \insertBib

According to the manual of the acro package, it's possible to print a list of acronyms via \printacronyms and format it as a longtable. I want to set colspec = {p{0.10\linewidth} p{0.80\linewidth}}, which is possible according to p. 39 of the manual, but I don't understand how exactly to do this. I tried modifying the optional arguments of \printacronyms and adding an optional argument when loading the acro package, but neither works. Do I need to \RenewAcroTemplate or is there a cleaner way to pass the colspec? \documentclass{article} \usepackage{acro} \usepackage{longtable, array} \DeclareAcronym{a}{ short = a, long = aaa } \DeclareAcronym{b}{ short = b, long = bbb } \begin{document} \printacronyms[template=longtable] Test \ac{a} and \ac{b}. \end{document}

I don't need to do customising, I am happy with the way LaTeX looks already. What solution do you recommend for when a command like pandoc file.md -o file.pdf outputs warnings like [WARNING] Missing character: There is no ─ (U+2500) (U+2500) in font [lmmono10-regular]:! ? I believe there's a way to specify a specific font via a command-line option, but even then what font would I choose? The focus here is full Unicode support, i.e. be gone, Missing character issues! (--pdf-engine=xelatex and --pdf-engine=lualatex have not sufficed in this case)

The footer only works from page 2 to the end, but I have to make a manual footer in the cover like this MWE (I've tried to simplify my code before posting, though it's still too long to read, so sorry): \documentclass[12pt,twoside]{article} \usepackage[a4paper, hmargin=2cm, vmargin=1.8cm]{geometry} \usepackage{graphicx} % \includegraphics \usepackage{tikz} % candidate name box \usepackage[export]{adjustbox} % valign=m in tabular \usepackage{fancyhdr} % mypages style \usepackage{array} % m{} column type \usepackage{pstricks} % \rput, \rotatebox \usepackage{pst-barcode} % \psbarcode \usepackage{marginnote} % \marginnote \usepackage{refcount} % \getrefnumber \usepackage{lastpage} % \pageref{LastPage} \usepackage{lipsum} \pagestyle{empty} \newcommand{\commandpage}{\pageref{LastPage}} \newcounter{marks} \newcommand{\maxmarks}{100} \newcommand{\addmarks}[1]{\addtocounter{marks}{#1}} \newcommand{\award}[1]{\addmarks{#1}\par\hfill[#1]\par} \makeatletter \AtEndDocument{% \immediate\write\@auxout{% \string\newlabel{totalmarks}{{\number\value{marks}}{\thepage}}% }% } \makeatother \newcommand{\marktotal}{\getrefnumber{totalmarks}} \newcommand{\markwarning}{% \ifnum\getrefnumber{totalmarks}>\maxmarks \par\smallskip \noindent\textbf{WARNING: TOTAL MARKS EXCEED \maxmarks.}% \fi } \fancypagestyle{mypages}{ \fancyhf{} \fancyhead[C]{\thepage} \fancyfoot[L]{\small © School 2026} \fancyfoot[C]{\small 0580/02/UT/26} \fancyfoot[RO]{\small \textbf{[Turn Over]}} \renewcommand{\headrulewidth}{0pt} } \newcolumntype{L}[1]{>{\raggedright\arraybackslash}m{#1}} \newcolumntype{R}[1]{>{\raggedleft\arraybackslash}m{#1}} \newcommand{\studentcode}{04-14-2026-TEST} \newcommand{\studentpayload}{TEST-PAYLOAD} \newcommand\studentbarcodetag{% \rput(-1.34,-6){\rotatebox{270}{% \parbox{6in}{\centering% \small\ttfamily\studentcode\\[-0.8cm] \makebox[3in][l]{\psbarcode{\studentpayload}{height=0.5 width=4}{code128}} }% }}% } \begin{document} \begingroup \setlength{\parindent}{0pt} \vspace*{-1.7cm} \begin{tabular}{@{}p{0.2\textwidth}@{}p{0.8\textwidth}@{}} \hspace*{-.25cm}\includegraphics[height=2.2cm,valign=m]{example-image} & \hfill\includegraphics[height=2.2cm,valign=m]{example-image}\hspace*{-1cm} \end{tabular} \vspace{1cm} {\LARGE \textbf{Program Title}} \vspace{0.6cm} \hspace*{-0.15cm}\begin{tikzpicture} \node[anchor=west] at (0,-0.2) {\small FULL NAME}; \draw (3,-0.7) rectangle (17,0.3); \end{tikzpicture} \vspace{10pt} \reversemarginpar\marginnote{\studentbarcodetag}% \hrule \begin{tabular}{@{}p{0.6\textwidth}@{}p{0.4\textwidth}@{}} \vspace{1pt} \textbf{SUBJECT} \par Paper 1 \vspace{2pt} \par Instructions here. & \raggedleft\vspace{1pt} 0580/02 \par April 2026 \par 1 hour 20 minutes \end{tabular} \endgroup \vspace{1pt} \hrule \vspace{0.6cm} \noindent\textbf{INFORMATION} \begin{itemize} \item Total marks: \textbf{\marktotal}. \item Marks per question shown in brackets~[ ]. \end{itemize} \markwarning \hrule \vspace*{0.2cm} \begin{center} This document has \textbf{\commandpage} pages. \end{center} \hrule \vspace{1cm} \noindent \begin{tabular}{@{}p{0.5\textwidth}@{}p{0.5\textwidth}@{}} {\small © School 2026} & \raggedleft{\small \textbf{[Turn Over]}} \end{tabular} \newpage \pagestyle{mypages} \lipsum[1-20] \end{document} I need to make the footer automatic on the lower. as you can see, on the first cover, since it is manual, it acts like a multiline text. so, if I add text, it will be pushed below. I want it to be locked at the footer just as the rest odd paging. T.I.A

I've noticed that use of \underbrace{} and cousins, including \under/\overbracket{} from mathtools, messes up the following spacing. Here's a minimal document showing this, with output image: \documentclass{article} \usepackage{amsmath} \usepackage{mathtools} \begin{document} \begin{equation*} \begin{aligned} &a + \overbracket{3000} + c \\ &a + 3000 + c \\ &a + \underbracket{3000} + c \\ &a + \overbrace{3000} + c \\ &a + 3000 + c \\ &a + \underbrace{3000} + c \end{aligned} \end{equation*} \end{document} You notice that on the second and fifth lines ('a+3000+c') there's correct spacing between the last '+' and 'c', but on the lines where \overbrace{}, \underbrace{}, \overbracket{}, \underbracket{} are used, that spacing is abnormally reduced. The problem persists even if under/overtext is added with _{}. The only way I've found to fix it is to enclose the whole bracket macro in curly brackets, eg {\underbrace{...}}. A search on Stackexchange and web in general didn't lead to anything regarding this. Does anyone know if it's a known bug, and how to fix it in a better way?

Is this an appropriate way to define a new math operator-with-limits (for a "box product"), like \bigcup, assuming use of lua-unicode-math and lualatex? % !TEX program = lualatex \documentclass{article} \usepackage{fontspec} \usepackage{lua-unicode-math} \setmainfont{TeX Gyre Termes X} \setmathfont{STIX Two Math} \usepackage{amsmath} \usepackage{scalerel} \AtBeginDocument{% \DeclareMathOperator*{\bigsquareop}{\scalerel*{\lgwhtsquare}{\bigcup}} \DeclareRobustCommand{\BoxProd}{\DOTSB\bigsquareop}% } \begin{document} $\bigcup_{i \in I} X_{i} \quad \BoxProd_{i \in I} X_{i}$ and \[ \bigcup_{i \in I} X_{i} \quad \BoxProd_{i \in I} X_{i} \] \end{document} Related: How to create my own math operator with limits?, How to create a new math operator?, https://tex.stackexchange.com/a/552914/13492.

Edit: follow-up question here: How to highlight the current subsection at the beginning of each subsection in ltx-talk? How do I show the start of a new section, either as itself a "section slide" or even in the "body" slides? \DocumentMetadata{ lang = de, pdfstandard = ua-2, pdfstandard = a-4f, tagging=on, tagging-setup={math/setup=mathml-SE} } \documentclass{ltx-talk} \EditInstance{footer}{std}{ element-order = {title, subtitle, framenumber} } \title{My talk} \subtitle{I want to show sections} \institute{University of Stack Exchange} \date{} \begin{document} \begin{frame} \maketitle \end{frame} \section{Motivation} \begin{frame}\frametitle{Here is a frame title} Some text. \end{frame} \section{Real talk} \begin{frame}\frametitle{Here is a frame title} Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. \end{frame} \end{document}

I want to use \str_set_convert:Nnnn with Japanese chars directly in document. The MWE below has no problem in pdfLaTeX. It correctly displays E782B9. \documentclass{article} \begin{document} \ExplSyntaxOn % works in pdflatex, fails in lualatex \str_set_convert:Nnnn \l_tmpa_str {点} {utf8} {utf8/hex} \l_tmpa_str \ExplSyntaxOff \end{document} But in LuaLaTeX, it gives the error message: LaTeX Error: String invalid in escaping 'bytes': it may only contain bytes. What am I missing? How should I wrap the text to get the same result in any engine provided that "the user" can type the actual Japanese char, not some escaping sequences?

I'm going to have a printed version of my ltx-talk that won't have color. I would still like to have \alert do something, however. I think that means I should renew alert to make things bold, but I'm having trouble making that work properly: many of the options listed at How can I get bold math symbols? don't make things bold, or they cause errors if tagging is enabled. To give an example: \DocumentMetadata{} \RequirePackage{fixmath} % must come before unicode-math loaded by ltx-talk \documentclass{ltx-talk} \usepackage{bm} \usepackage{amsmath} \usepackage{amsbsy} \newcommand{\colvect}{\begin{pmatrix}x\\-1\end{pmatrix}} \begin{document} \colorlet{alert}{black} \begin{frame} \( normal \colvect alert \alert{\colvect} mathbf \mathbf{\colvect} symbf \symbf{\colvect} pmb \pmb{\colvect} % incompatible with unicode-math, tagging? mathbold \mathbold{\colvect} % requires package fixmath, conflicts with unicode-math % \boldsymbol{\colvect}\quad % error % \bm{\colvect}\quad % error \) boldmath {\boldmath\(\colvect\)} % {\setmathfont{luciole-math}\(\colvect\)} % preamble only bfseries {\bfseries\(\colvect\)} % \(\bfseries\colvect\) % invalid in math mode \bigskip normal \alert{alert} \textbf{textbf} \symbf{symbf} \pmb{pmb} {\bfseries bfseries} \end{frame} \end{document} has the output Notice that without color, \alert doesn't do anything. \symbf does a bit in math mode, but only the letter and number, not the parentheses and minus. \textbf and \bfseries succeed in text mode, so I could test \ifmmode, but I still need something in math mode. \pmb seems to work the best, but https://github.com/latex3/tagging-project/issues/1240 says that it's not working at the moment (and it appears to be intentionally broken in text mode).

After updating miktex today I get the message Undefined control sequence. \mathemptydisplaymode in the luabidi.sty. I removed miktex completely and installed it, the same result. Could you please help me? It’s a 4,000-page book in Greek, Hebrew, and Dutch that was compiled over the past three years. % !TeX TS-program = lualatex \documentclass[11pt,a4paper,twoside]{book} %%%%%%%%%%%%------following loaded before biblatex` \usepackage{fontspec} \usepackage{polyglossia} \setmainlanguage{dutch} \setotherlanguage{greek} \setotherlanguage{hebrew} %%<<-------------------Greek/Hebrew \setmainfont[Ligatures=TeX]{Charis SIL} \defaultfontfeatures{Ligatures=TeX} \newfontfamily\hebrewfont{Ezra SIL‬‬}[Script=Hebrew,Contextuals=Alternate]%\texthebrew %%Greek \newfontfamily{\greekfont}[Script=Greek, Scale=MatchUppercase, Ligatures=TeX]{SBL Greek} \begin{document} Nederlands: gewoon een zinnetje Grieks: \textgreek{Οὗτος δῶρα} Hebrew: \texthebrew{תְהֹ֑ום} \end{document}

This is my code (which I compile using LuaLatex: This is LuaHBTeX, Version 1.24.0 (TeX Live 2026) (format=lualatex 2026.4.1). % test of hrefrun \DocumentMetadata { pdfversion = 2.0, } \documentclass [ a4paper, ] {article} \usepackage{hyperref} % set options for hyperref \hypersetup { colorlinks, % give links a color runcolor = blue, % set color of links to external files } \ExplSyntaxOn % ----------------------------------------------------------------------------- % Command to replace all occurrences of a given text in a string with another given text. % % Note that the original text is not changed, this command gives as result the % processed text. % % #1 = text which needs to be processed % #2 = text to be replaced % #3 = the replacement text % ----------------------------------------------------------------------------- \NewDocumentCommand{\ReplaceText}{m m m} { \tl_set:Nn \l_tmpa_tl {#1} \tl_replace_all:Nnn \l_tmpa_tl {#2} {#3} \tl_to_str:N \l_tmpa_tl } \ExplSyntaxOff %--------------------------------------------------------------- \begin{document} % make a filename in which spaces are replaced by underscores \newcommand{\MyFilename}{\ReplaceText{./audio/Engels/one hundred.mp3}{ }{_}} \hrefrun{\MyFilename}{\MyFilename} \end{document} When I compile this code, the second parameter of \hrefrun is correct. However in the first parameter of \hrefrun is the space between 'one' and 'hundred' not replaced by an underscore. Instead of that, the space and underscore are appended after '.mp3'. See this image: How can I get the first parameter of \hrefrun to be processed correctly?

I am creating a beamerposter with linguistic examples in expex with a custom font (libertine). I originally wrote most of it using pdflatex but have to switch to lua or xetex now. However, when I do so, the spacing within the examples changes drastically. Simply loading fontspec has the same effect, so it doesn't seem to have anything to do with the font specifically. Loading neither libertine nor fontspec produces the same spacing as pdflatex. \documentclass{beamer} \usepackage{beamerposter} % loading either of these increases the spacing within expex's (cf. second picture) %\usepackage{fontspec} %\usepackage{libertine} \usepackage{expex} \begin{document} \begin{frame} \pex \a \begingl \gla text// \glb gloss// \glft `transl'// \endgl \xe \ex \begingl \gla text// \glb gloss// \glft `transl'// \endgl \xe \end{frame} \end{document} pdflatex with libertine: lualatex with libertine (same spacing with xetex and/or fontspec): lualatex without libertine or fontspec:

I want to pose a question to resolve the issue described in https://stackoverflow.com/a/32463868/32395400, by simplicial partitioning. There doesn't seem to be a precedent for this, so I made a little document: \documentclass[tikz,border=1cm]{standalone} \begin{document} \begin{tikzpicture} \foreach \ang/\col in {0/red,120/green,240/blue} { \draw[\col,ultra thick] (\ang:1) -- +(\ang-90:3) -- +(\ang+90:3); } \end{tikzpicture} \end{document}

Under normal circumstances, BibLaTeX uses the same coordinating conjunction "and" for two authors that may have their names in one script (Latin, for now) and also to join two translator names that could have their names in another script (Cyrillic in this example). You may change the scripts above to any other pair and the problem remains the same. This has the unfortunate consequence of placing a pair of names in English joined by a Russian conjunction in the text as seen here: generated by the simple MWE: \documentclass{article} \begin{filecontents}[overwrite]{isaac.bib} @BOOK{isaacson:en, author = {Isaacson, Eugene and Keller, Herbert Bishop}, title = {Analysis of Numerical Methods}, publisher = {Dover Publications}, address = {Mineola, New York}, year = {1994}, langid = {english}, } @BOOK{isaacson:ru, author = {Isaacson, Eugene and Keller, Herbert Bishop}, title = {Анализ численных методов}, author-ru = {Э. Исааксон and Х. Б. Келлер}, translator = {В. В. Пчелинцев and L. L. Пчелинцев}, publisher = {Мир}, address = {Москва}, year = {1976}, langid = {russian}, } @book{rudin:zh, author = {Walter Rudin and Elena Rudin}, title = {实分析与复分析}, translator = {戴牧民 and 张更容}, publisher = {机械工业出版社}, address = {北京}, year = {2006}, langid = {chinese-simplified}, } \end{filecontents} \usepackage{babel} \babelprovide[import, main]{american} \babelprovide[import]{russian} \babelfont{rm}{NewComputerModern10} \babelfont{sf}{NewCMSans10-Regular} \babelfont{tt}{NewCMMono10-Regular} \babelprovide[import]{chinese-simplified} \babelfont[chinese-simplified]{rm}[ Scale = MatchLowercase, ItalicFont = Noto Serif CJK SC, ItalicFeatures = {FakeSlant=0} ]{Noto Serif CJK SC} \usepackage[style=authoryear,language=auto,autolang=other]{biblatex} \addbibresource{isaac.bib} \begin{document} Citing \textcite{isaacson:en}, \textcite{isaacson:ru}, \textcite{rudin:zh}. \printbibliography \end{document} It would be desirable to: Have one conjunction to be used with the authors names (and) that would show up in the Biblio list and in the main text, that is mostly in Latin. Have another to be used with the translator names (и) or inside the record, that is mostly in Cyrillic The russian.lbx file (as all others I know of) seems to have only one coordinating conjunction. and = {{и}{и}}, Is there a way to separate them, or define a new one, to be used in the bibliographical tags?

I am trying to graph a system of 3 inequalities in 3 dimensions. These ineuqalities are: y-z>=1/2x, x-z>=0, and x+y>=3z. Currently I am struggling to get even a basic output. My input is: \documentclass[12pt, a4paper]{article} \usepackage{float, ulem, amsmath, amsthm, amssymb, pgfplots, tikz} \pgfplotsset{width=10cm,compat=1.9} \usepgfplotslibrary{external, fillbetween} \tikzexternalize \begin{document} \begin{tikzpicture} \begin{axis}[domain=0:10,y domain=0:10] \addplot3[surf] {y-(\frac{1}{2}*x)}; \addplot3[surf] {x}; \addplot3[surf] {\frac{x+y}{3}}; \end{axis} \end{tikzpicture} \end{document} I am getting the error: "Package tikz Error: Sorry, the system call 'pdflatex -shell-escape - halt-on-error -interaction=batchmode -jobname "output-figure0" "\def\tikzexternalrealjob{output}\input{output}"' did NOT result in a usable output file 'output-figure0' (expected one of .pdf:.jpg:.jpeg:.png:). Please verify that you have enabled system calls. For pdflatex, this is 'pdflatex -shell-escape'. Sometimes it is also named 'write 18' or something like that. Or maybe the command simply failed? Error messages can be found in 'output-figure0.log'."

While I know that I can use % to comment out a line of code, I would like to get the same result (i.e. non-compiling text) in the middle of a block of text, like this (the brackets are here just to show the example): Blabla blabla bla bla bla [some non-compiling comments] bla bla blabla blab I don't want to write something like the following (i.e splitting the text paragraph): Blabla blabla bla bla bla % some non-compiling comments bla bla blabla blab Is it possible? I guess that I'll need to use some non-compiling macro, like \nc{} but I would prefer not to use something like it. In Mathematica, we have the ability to insert non-compiling codes with (* non-compiling text *)

I’d like to include the skull emoji 💀 in a document compiled with pdfLaTeX but with colors similar to how it displays on my device in other contexts. I can get a skull with fontawesome, but it’s not quite the same: \documentclass{scrartcl} \usepackage{fontawesome5} \begin{document} \faSkull \end{document} creates a skull like which is black/white inverted compared to how my device normally shows 💀, where the skull is white, and the eye sockets are black. I cannot change to LuaTeX because what I am compiling is like, super large. I also tried something along the lines of \contourlength{0.5pt} and \contour{black}{\color{white}\faSkull} but that did not work well. Can anyone help get 💀 with black eye sockets on a white skull or something close to it? Thanks!