Week

I am working with optex 1.17, which comes with TeXLive 2023. I am creating slides, but I am having a problem with the counter at the beginning, on the cover slide. The slide number appears near the lower right corner. How can I make it disappear? Am I doing something wrong? How can I customize the slide number design for the following slides? \fontfam[Fira] \slides \wideformat \load[colors] \def\author#1{\def\theauthor{#1}} \author{Titor} % Redefinimos \tit y \subtit para que solo guarden el texto % pero NO generen una página extra. \def\tit #1{\def\thetit{#1}} \def\subtit #1{\def\thesubtit{#1}} \tit{My slide} \subtit{first intent} \def\azul{\pdfliteral{0.408 0.824 0.875 rg}} \def\gris{\pdfliteral{0.4706 0.5098 0.5412 rg}} \def\negro{\pdfliteral{0 g 0 G Q}} % 2. CARÁTULA MANUAL (Sin margen) \puttext -150mm 0mm {% \vbox to 0pt{ \offinterlineskip \vskip -50mm \vbox{ {\azul\hrule height 90mm width 500mm} {\gris\hrule height 185mm width 500mm} } \vss }% } % 3. CONTENIDO USANDO LAS MACROS NEUTRALIZADAS \null \vskip -1cm %\centerline{ {\setfontsize{at45pt}\caps\rm \pdfliteral{1 1 1 rg} \thetit}%} \vskip 1.5cm %\centerline{ {\setfontsize{at19pt}\caps\it \pdfliteral{0 g} \theauthor}%} \vskip 1cm %\centerline{ {\setfontsize{at20pt}\caps\rm \pdfliteral{0.408 0.824 0.875 rg} \thesubtit}%} \vskip 2cm % {\setfontsize{at15pt}\caps\rm \pdfliteral{0 g}Presented by} \vskip 0cm {\setfontsize{at19pt}\caps\rm \pdfliteral{0 g}Me} \vfill \pg+ % 4. REGISTRO Y CONFIGURACIÓN PARA EL RESTO DE SLIDES \negro \pgbackground={} \def\HeadColor{\pdfliteral{0 g}} \pg; %%%%%%%%%%%%%%%%%%%%%%%%%5 %%%%%%%%%%%%%%%%sec title bar \newdimen\framebarheight \framebarheight=1.2cm \let\oldprintsec=\_printsec \def\_printsec#1{% % barra superior absoluta \puttext -20mm 0mm {% \vbox to0pt{ \offinterlineskip \vskip -16mm \vbox{ {\gris\hrule height 17.5mm width 500mm} %{\gris\hrule height 185mm width 500mm} } \vss } } % acercar el título a la barra \vskip-1.4cm %%%%%%%%%%%%%%%%%%%%custom sec \hbox to\hsize{ \hskip -2.5mm {\azul\setfontsize{at25pt}\caps\rm #1} \hfil \vbox to10mm{ \vfil \hbox{\picw=10mm \inspic{logo.png}} \vfil } \hskip 2.5mm } \par \vskip 6mm } %%%%%%%%%%%%%%%%%%%%%%% %\bigskip %%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%custom bullets \def\BulletColor{0.408 0.824 0.875} \_sdef{_item:X}{% {\pdfliteral{\BulletColor\space rg}\_raise.2ex\_fullrectangle{.8ex}}% \pdfliteral{0 0 0 rg}% \kern.5em } \_sdef{_item:x}{% {\pdfliteral{\BulletColor\space rg}\_raise.3ex\_fullrectangle{.6ex}}% \pdfliteral{0 0 0 rg}% \kern.4em } %%%%%%%%%%%%%%%%%%%%%%%%%% %\pageno=1 %\def\pgfoot{\hfil\the\pageno} \sec Useful links * Wikipedia: \url{https://wikipedia.org} * DuckDuckGo: \url{https://duckduckgo.org} \pg.

I am preparing a project that involves representing the Italian Parliament using a semicircle made of colored dots, as shown in the following image: I have tried to create something using the wheelchart package (page 19 of the manual), which allows generating similar charts. However, I am unable to automatically increase the number of dots per row. For example, in the figure there are 12 dots per row, but I would like a more customizable (for example 7 balls for every radius) and automatic solution to control this. I prefer big dots and not balls. \documentclass{article} \usepackage{tikz} \usepackage{wheelchart} \begin{document} \begin{tikzpicture} \pgfkeys{ /wheelchart, discrete, discrete pic={\shade[ball color=\WCvarB] (0,0) circle[radius=2pt];}, discrete sort=angle, discrete space at borders=false, start angle=180, total angle=180, value=\WCvarA } \wheelchart{ 120/blue/, 45/green/, 40/red/, 25/orange/, 10/purple/, 5/teal/ } \end{tikzpicture} \end{document}

There are various packages that will conveniently give extensible arrows with sub/superscripts. I'm aware of: amsmath (only for basic arrows) mathtools extarrows chemarrow You can of course do the same thing with TikZ or similar. I want something similar, but with no arrowheads at all. What's the best way to achieve that? I can do it with TikZ, but the mildly annoying part would be matching the standard arrow height and width. Should I figure out how to use the internal \arrowfill@ command in amsmath? My application is essentially marking a chain of edges connected in a graph, with various labels on the edges. Here's one attempt using a text em-dash. You can see that the em-dash isn't the same as the math-mode arrow. \documentclass[12pt]{amsart} \begin{document} \[ x \overset{\mathcal{U}}{\mathbin{\text{---}}} y \overset{\mathcal{U}}{\longrightarrow} z\] \end{document}

I am compiling a LaTeX document in VS Code using the LaTeX Workshop extension on Windows 11. My document uses: chemnum / chemstyle nomencl biblatex mhchem Originally my latexmk tool was configured with: -pdf However, this produced incorrect compound labels when using chemnum with a scheme environment (temporary labels such as TMP1, TMP2 were not replaced). Following advice from a previous question, I changed the compilation pipeline to: -pdfps, (see my previous question: VS Code LaTeX Workshop: how to configure settings.json when using both chemnum and nomencl?) This indeed fixes the chemnum labeling issue. However, now I cannot include PNG graphics. For example: \begin{figure} \centering \includegraphics[scale=0.8]{random.png} \caption{random} \label{fig:random} \end{figure} produces the error: Cannot determine size of graphic (no BoundingBox) (This also does not work with [width=0.5\textwidth] or when using a .pdf image instead of .png.). In the real document there are several PNG graphics. I would also like all PNG images to be included with a fixed scale=0.8. I found the following related question, but it is quite old, so perhaps there is a more up-to-date solution: Cannot determine size of graphic settings.json { "latex-workshop.latex.tools": [ { "name": "latexmk", "command": "latexmk", "args": [ "-synctex=1", "-interaction=nonstopmode", "-file-line-error", "-pdfps", "%DOC%" ] }, { "name": "makenomenclature", "command": "makeindex", "args": [ "%DOCFILE%.nlo", "-s", "nomencl.ist", "-o", "%DOCFILE%.nls" ] } ], "latex-workshop.latex.recipes": [ { "name": "latexmk → nomencl → latexmk", "tools": [ "latexmk", "makenomenclature", "latexmk" ] } ], "latex-workshop.latex.recipe.default": "latexmk → nomencl → latexmk", "latex-workshop.latex.autoBuild.run": "never", } aromatic-compounds.eps https://drive.google.com/file/d/1faCOOvd5xcVAF_KZqhx7vAI0Mqh7pmF6/view?usp=sharing main.tex \documentclass{article} \usepackage{geometry} \usepackage{graphicx} \usepackage[version=4]{mhchem} \usepackage{chemstyle} \usepackage{chemnum} \usepackage[backend=biber]{biblatex} \addbibresource{bib.bib} \usepackage{nomencl} \makenomenclature \begin{document} \nomenclature{A}{a} \printnomenclature \section{First} \cite{knuth1984texbook} \begin{scheme} \replacecmpd{benezen} \replacecmpd{toluene} \includegraphics[scale=0.8]{aromatic.eps} \caption{Aromatic-compounds} \label{aromatic-compounds} \end{scheme} \begin{figure} \centering \includegraphics[width=0.5\textwidth]{random.png} \caption{random} \label{fig:random} \end{figure} \refcmpd{benezen, toluene} \printbibliography \end{document} bib.bib @book{knuth1984texbook, title={The texbook}, author={Knuth, Donald Ervin and Bibby, Duane}, volume={15}, year={1984}, publisher={Addison-Wesley Reading} }

This question is a followup of a previous question of mine that David kindly answered with the following example: \documentclass{article} \usepackage{csquotes} \def\test#1{% \setbox0\hbox{#1}% \usebox{0}% \directlua{ local nn=0 for n in node.traverse_glyph(tex.box[0].head) do nn=n.char end if nn==8221 then tex.print("\string~yes") else tex.print("\string~no") end }} \begin{document} \begin{enumerate} \item \test{“Foo”} \item \test{\enquote{Bar}} \item \test{xyz} \end{enumerate} \ExplSyntaxOff \end{document} I'd like to expl3-ify this MCE and here is the first step which works nicely: \begin{filecontents*}[overwrite]{myfile.lua} function closing_double_quote(glyph) local nn=0 for n in node.traverse_glyph(glyph) do nn=n.char end if nn==8221 then tex.print("yes") else tex.print("~no") end end \end{filecontents*} \documentclass{article} \usepackage{csquotes} \ExplSyntaxOn \lua_now:n{ require('myfile') } \cs_new_protected:Nn \__mymodule_closing_double_quote:n { \setbox0\hbox{#1} \usebox{0} : \c_space_tl \lua_now:n{ tex.write(closing_double_quote(tex.box[0].head)) } } \begin{document} \begin{enumerate} \item \__mymodule_closing_double_quote:n {“Foo”} \item \__mymodule_closing_double_quote:n {\enquote{Bar}} \item \__mymodule_closing_double_quote:n {xyz} \end{enumerate} \end{document} What remains is: \setbox0\hbox{#1} \usebox{0} that could be expl3-ified as follows: \hbox_set:Nn \l_tmpa_box { #1 } \box_use:N \l_tmpa_box But what would be the equivalent of box[0] in the Lua code: tex.write(closing_double_quote(tex.box[0].head))

Is it possible to set the vertical space between two subtables as in Table 2 in the following MWE, but using something more "automatic" than setting a \vspace manually? \documentclass{book} \usepackage{subcaption} \subcaptionsetup[table]{position=top} \begin{document} \begin{table}[ht]\centering \caption{Table caption} \begin{subtable}{\linewidth}\centering \caption{First subtable caption} \begin{tabular}{cc} \hline a & b \\ c & d \\ \hline \end{tabular} \end{subtable} \begin{subtable}{\linewidth}\centering \caption{Second subtable caption} \begin{tabular}{cc} \hline e & f \\ g & h \\ \hline \end{tabular} \end{subtable} \end{table} \begin{table}[ht]\centering \caption{Table caption} \begin{subtable}{\linewidth}\centering \caption{First subtable caption} \begin{tabular}{cc} \hline a & b \\ c & d \\ \hline \end{tabular} \end{subtable}\vspace{10pt} \begin{subtable}{\linewidth}\centering \caption{Second subtable caption} \begin{tabular}{cc} \hline e & f \\ g & h \\ \hline \end{tabular} \end{subtable} \end{table} \end{document} Maybe this is a trivial question, but I found only the \vspace (or similar) answers.

With kpfonts, \not\supseteq becomes \supsetneq, which is not desirable: Expected result should look like: This appears to be a bug, because \not\subseteq looks fine. However, before the package gets fixed, is there any temporary way to fix this behavior? \documentclass{article} % \usepackage{kpfonts} % \usepackage{unicode-math} \usepackage{kpfonts-otf} \begin{document} \( \not\supseteq \) \end{document}

I tried this solution, but it gives me this result: I wish to have those logos have the same height like this: MWE: \documentclass[12pt,a4paper]{article} \usepackage[a4paper,margin=2cm]{geometry} \usepackage{graphicx} \usepackage{tikz} \usepackage{enumitem} \usepackage{setspace} \usepackage[export]{adjustbox} \pagestyle{empty} \begin{document} %==================== LOGOS ==================== \begin{tabular}{@{}p{0.5\textwidth}@{}p{0.5\textwidth}@{}} \includegraphics[height=2.2cm,valign=t]{newarrohmah.png} & \hfill \includegraphics[height=4cm,valign=t]{cambridge.png} \end{tabular} \vspace{0.4cm} \textbf{Cambridge IGCSE\texttrademark} Teacher : Mr. Shandy \vspace{0.6cm} %==================== CANDIDATE BOX ==================== \begin{tikzpicture} % Candidate name \node[anchor=west] at (0,0) {\small CANDIDATE}; \node[anchor=west] at (0,-0.5) {\small NAME}; \draw (3,-0.7) rectangle (16,-0.1); % Centre number boxes \node[anchor=west] at (0,-2) {\small CENTRE}; \node[anchor=west] at (0,-2.5) {\small NUMBER}; \foreach \x in {3,4,5,6,7} \draw (\x,-2.7) rectangle (\x+1,-2.0); % Candidate number boxes \node[anchor=west] at (9,-2) {\small CANDIDATE}; \node[anchor=west] at (9,-2.5) {\small NUMBER}; \foreach \x in {12,13,14,15} \draw (\x,-2.7) rectangle (\x+1,-2.0); \end{tikzpicture} \vspace{0.8cm} %==================== PAPER HEADER ==================== \begin{tabular}{p{0.7\textwidth}p{0.3\textwidth}} \textbf{MATHEMATICS} Paper 1 Non-calculator & \raggedleft 0862/01 October 2025 1 hour 20 minutes \end{tabular} \vspace{0.4cm} \hrule \vspace{0.4cm} You must answer on the question paper. You will need: HB pencil or (black/dark blue) pen, and/or eraser \vspace{0.6cm} %==================== INSTRUCTIONS ==================== \textbf{INSTRUCTIONS} \begin{itemize}[leftmargin=1.5em, itemsep=2pt] \item Answer \textbf{all} questions. \item Use a black or dark blue pen. You may use an HB pencil for any diagrams or graphs. \item Write your name, centre number and candidate number in the boxes at the top of the page. \item Write your answer to each question in the space provided. \item Do \textbf{not} use an erasable pen or correction fluid. \item Do \textbf{not} write on any bar codes. \item You are not allowed to use a calculator. \item You may use tracing paper. \item You must show all necessary working clearly. \item Give non-exact numerical answers correct to 3 significant figures, or 1 decimal place for angles in degrees, unless a different level of accuracy is specified in the question. \item For $\pi$, use either your calculator value or 3.142. \end{itemize} \vspace{0.5cm} %==================== INFORMATION ==================== \textbf{INFORMATION} \begin{itemize}[leftmargin=1.5em] \item The total mark for this paper is 86. \item The number of marks for each question or part question is shown in brackets [ ]. \end{itemize} \vfill \hrule \vspace{0.2cm} \begin{center} This document has \textbf{10 pages} \end{center} \vspace{0.3cm} \begin{tabular}{p{0.5\textwidth}p{0.5\textwidth}} {\small © Arrohmah Bogor 2025} & \raggedleft {\small [Turn Over]} \end{tabular} \end{document} Currently, my paper looks like this: Could someone help me please? If it's done, it might look like both logos will look bigger. So pleasae tell me how to resize it, also. T.I.A. This is the folder that containes the files.

As a follow-up to a previous question, how can I prevent TikZ from cutting off the edge of the path if the edge of the object goes beyond the edge of the fading pattern? Here is a minimal working example: \documentclass{article} \usepackage[svgnames]{xcolor} \usepackage{tikz} \usetikzlibrary{fadings} \begin{document} \begin{tikzpicture} \begin{scope} \path [scope fading=east] (1,1) rectangle (3,3); \draw [FireBrick,very thick] (0,0) rectangle (2,2); \end{scope} \draw [dotted] (1,1) rectangle (3,3); \begin{scope}[yshift=-4cm] \path [scope fading=east] (1,1) rectangle (3,3); \draw [Gray,very thick] (-1,-1) rectangle (2,2); \end{scope} \draw [yshift=-4cm,dotted] (1,1) rectangle (3,3); \begin{scope}[yshift=-4cm,xshift=5cm] \path [scope fading=east] (1,-1) rectangle (3,3); \draw [Gray,very thick] (-1,-1) rectangle (2,2); \end{scope} \draw [Gray,very thick,yshift=-4cm,xshift=5cm] (0,2) -- (-1,2) -- (-1,-1) -- (0,-1); \end{tikzpicture} \end{document} which produces, in XPDF, Note that the red one works fine, because the edge of the fading (which extends about 25% beyond the edge of the object) is still 100% transparent there, but the gray one does not work because it extends past the edge of the fading. It should look like the one on the lower right, at least on the left-hand side of the square. Note that it would also be an issue for fadings that don't fade all the way out going off the right of the fading, or for very large radial fadings that fade to transparent well before the edge of the object being faded. If the paths were filled, I could simply fill the left part of the pattern with the solid color and clip without having to re-draw it, but if it's just a draw shading, part of it gets cut off and I don't know how to get it back short of drawing it again. Note: some PDF viewers (including my usual ones, Evince and Papers), do not display any of these images correctly, because they don't handle faded drawn paths correctly. This is a viewer problem, but XPDF seems to do better.

In the following (not so minimal) MWE \documentclass[border={1mm 3mm}, 11pt]{standalone} %---------------------------------------------------------------% \usepackage[aboveskip=0.5ex, belowskip=0.5ex, format=plain, font = {stretch=0.84, scriptsize}, labelfont = bf, labelsep = colon, singlelinecheck = off]{caption} \usepackage{tabularray} \SetTblrStyle{note}{\tiny} \SetTblrStyle{remark}{\tiny} \usepackage{tblr-extras} \UseTblrLibrary{booktabs, caption, siunitx} \sisetup{range-units = single, range-phrase = {/} } %---------------------------------------------------------------% \begin{document} \begin{talltblr}[ caption = {Specifikacije razredov lastnosti večrodovnih optičnih vlaken.}, label = {tab:kabli-4}, note{*} = {EMB (Effective Modal Bandwidth) je mera kapacitete večrodovnih vlaken. Pove, koliko podatkov lahko prenesemo na dani razdalji. Maksimalni EMB je pri $\lambda=\qty{850}{\micro\metre}$.}, remark{Opomba} = {Razredi kakovosti določajo tudi barvo plaščev optičnih vlaken. Ujemajo se z barvami vrstic v tabeli.} ]{colsep = 3pt, colspec = {@{} *{5}{Q[c]} Q[c, si={table-format=5.0}] Q[c, si={table-format=3.0}] Q[c] @{}}, cells = {font=\scriptsize\linespread{0.84}\selectfont}, cell{1}{1-3,8} = {r=2}{}, cell{1}{4,6} = {c=2}{}, rowsep = 0pt, row{1,2} = {guard} } \toprule {oznaka\\ razreda} & {TIA\\standard} & {premer\\ jedro/plašč} & slabljenje (db/km), & & EMB\TblrNote{*} (MHz$\cdot$km), & & vir \\ \cmidrule[lr]{4-5} \cmidrule[lr]{6-8} & & & \qty{850}{nm} & \qty{1300}{nm} & \qty{850}{nm} & \qty{1300}{nm} & \\ \bottomrule %---------------- \end{talltblr} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \end{document} I like to reduce vertical space between table and (bottom rule) and table note remark. How to do this?

I have an old latex file that in 2019 was perfectly ok. Today (in 2026) I try to compile the source and I get an error ERROR: Package tikz Error: Cannot parse this coordinate. The point in the file where it seems to be an error (according to emacs) is the following scope environment: \foreach\a in{(-30.5,4),(-13,9),(-16.5,-7.5),(34,0),(53,0),(72,0)} { \begin{scope}[shift={\a}] \draw (0,0) to[out=30, in=150] (4,0); \draw (-1,.5) to[out=-30, in=-150] (5,.5); \end{scope} } The weird thing is that file was completely fine and compiling some years ago! I isolated the problem creating a test file \documentclass{article} \usepackage{tikz} \begin{document} \begin{tikzpicture} \foreach\a in{(10,2), (5,-3)} { \begin{scope}[shift={\a}] \draw (0,0) to (2,2); \end{scope} } \end{tikzpicture} \end{document} and I get the same error. So, my question is What's wrong now, and how I can fix it in the current version of tikz?

My goal is to have zero-padded page numbers in the footer and in the table of contents. I use the code from this answer. However, it breaks with the hyperref package, only when the total page number has one digit, with the following error: test.tex: error: 86: Use of \??? doesn't match its definition. \newpage. I know that the padding is not needed in this case, but I would like the code to be more robust and also to understand why it breaks in that case. Here is a minimal working example. You can comment out/in \manypages to toggle between the code that breaks or not. \documentclass{article} \usepackage{lastpage} \usepackage{fancyhdr} \usepackage{hyperref} \hypersetup{ colorlinks = true, allcolors = blue } % From https://tex.stackexchange.com/a/730655/228589 \ExplSyntaxOn \NewDocumentCommand{\paddedcounter}{m} { \AtBeginDocument { \cs_if_exist:cF {maxdigits#1} { \cs_gset:cpn {maxdigits#1} {8} } } \AtEndDocument { \iow_now:ce {@mainaux} { \token_to_str:N \maxdigits{#1}{\fp_eval:n{logb(\value{#1}+0.1)+1}} } } \cs_gset:cpn {the#1} { \padded{#1} } } \NewDocumentCommand{\maxdigits}{mm} { \cs_gset:cpn {maxdigits#1}{#2} } \NewExpandableDocumentCommand{\padded}{m} { \prg_replicate:nn { \use:c { maxdigits#1 } - \tl_count:e { \arabic{#1} } } { 0 } \arabic{#1} } \ExplSyntaxOff \paddedcounter{page} \pagestyle{fancy} \fancyhead{} \renewcommand{\headrulewidth}{0pt} \fancyfoot[C]{\thepage\ / \pageref*{LastPage}} \newcommand{\manypages} { \section{Some section} \newpage \section{Some section} \newpage \section{Some section} \newpage \section{Some section} \newpage \section{Some section} \newpage \section{Some section} \newpage \section{Some section} \newpage \section{Some section} \newpage \section{Some section} \newpage \section{Some section} \newpage \section{Some section} \newpage \section{Some section} \newpage \section{Some section} \newpage } \begin{document} \thispagestyle{fancy} \begin{center} {\Huge Some title} \end{center} \tableofcontents \newpage \manypages \end{document}

The MWE \DocumentMetadata{} \documentclass{article} \usepackage{mathtools} \mathtoolsset{mathic} \begin{document} \(a\) \end{document} gives the following error Runaway argument? \fi a\) \par \end {document} ! File ended while scanning use of \__math_grab_dollar_delim:w. <inserted text> \par <*> test.tex I suspect you have forgotten a `}', causing me to read past where you wanted me to stop. I'll try to recover; but if the error is serious, you'd better type `E' or `X' now and fix your file. Removing either \DocumentMetadata or mathic compiles. Why is that? It seems like a (recent) bug. EDIT: for reproducibility, the pdfLaTeX version used was pdfTeX 3.141592653-2.6-1.40.29 (TeX Live 2026/Arch Linux) with the command pdflatex -interaction=nonstopmode -shell-escape -halt-on-error.

I'm using the LaTeX package forest to render "surface grammar trees" of sentences. Using the particular grammar I'm using (Eisenberg), you can get trees where the leaves are not in natural order. E. g. the sentence "Ich suche verzweifelt einen Stift" ("I search desperately a pen") would have the adverb "verzweifelt" ("desperately") attached to the rest of the sentence at the very last layer and the syntactical analysis tree would look something like this: How is this possible in forest without having to put the adverb to the end of the sentence (which wouldn't make sense). This would produce the correct tree structure but with the wrong word order. How can I specifically move the "verzweifelt" node to the third word position without changing the tree structure? \documentclass{article} \usepackage{forest} \usetikzlibrary{calc} \usepackage[T1]{fontenc} \begin{document} \begin{forest} for tree={ grow=south, parent anchor=south, child anchor=north, align=center, l sep=15pt, s sep=10pt, edge path={ \noexpand\path [draw] (!u.south) -- +(0,-5pt) -| (.north)\forestoption{edge label}; }, } [$S_2$ [S [Ich, tier=word] [suche, tier=word] [PrGr [einen, tier=word] [Stift, tier=word] ] ] [verzweifelt, tier=word] ] \end{forest} \end{document}

I want to colour the harakat (diacritics) of a text in Pashto. I use Luatex, and I want to switch this function on and off. It should look like I tried this code: \documentclass{article} \usepackage{fontspec} \usepackage{xcolor} \usepackage{luacolor} \usepackage[bidi=basic]{babel} % Setup Arabic language \babelprovide[import, main]{arabic} % THE FIX: Use Renderer=Node instead of Harfbuzz \babelfont{rm}[Renderer=Node]{Amiri} % 1. The Lua Script \directlua{ harakat_attr_val = nil local luacolor_attr = luatexbase.attributes['luacolor'] local function color_harakat(head) if not harakat_attr_val then return head end for item in node.traverse_id(node.id("glyph"), head) do local char = item.char -- Unicode range for Arabic harakat (0x064B to 0x065F) -- and the superscript Alef (0x0670) if (char >= 0x064B and char <= 0x065F) or char == 0x0670 then node.set_attribute(item, luacolor_attr, harakat_attr_val) end end return head end % Add the filter so it runs before the font shaper luatexbase.add_to_callback("pre_linebreak_filter", color_harakat, "color_harakat") } % 2. Custom command to safely set the Harakat color \makeatletter \newcommand{\setHarakatColor}[1]{% \begingroup \color{#1}% \directlua{ harakat_attr_val = tex.attribute[luatexbase.attributes['luacolor']] }% \endgroup } \makeatother \begin{document} \begin{center} \Huge % Tell LuaTeX to color all following harakat Red \setHarakatColor{red} بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ \vspace{1cm} % Switch to blue! \setHarakatColor{blue} بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ \end{center} \end{document} But it is not coloring. What might be the problem, or is there an easy option in Luatex?

I am designing a square (or “squarish” actually) map protractor in TikZ. So far, I have managed to draw the degree ticks along the four sides by clipping radial lines between two closed paths using the even odd rule like I saw in this answer. The ticks are generated in a \foreach loop. To avoid drawing long ticks on top of short ones, I separated them into two loops using a conditional test. I am not sure whether this separation is actually necessary for correct SVG export/printing, but that is how I implemented it. Below is a MWE: \documentclass[tikz]{standalone} %,convert={outfile=\main.svg} \usepackage{pgfplots} \pgfplotsset{compat=newest} \usetikzlibrary{intersections, pgfplots.fillbetween} \pgfdeclarelayer{pre main} \pgfdeclarelayer{main} \pgfsetlayers{pre main, main} \usetikzlibrary{shapes} \begin{document} %all of this is needed to easily clip between two closed paths using even odd rule \makeatletter \def\@appendnamedsoftpath#1{% \pgfsyssoftpath@getcurrentpath\@temppatha \expandafter\let\expandafter\@temppathb\csname tikz@intersect@path@name@#1\endcsname \expandafter\expandafter\expandafter\def\expandafter\expandafter\expandafter\@temppatha\expandafter\expandafter\expandafter{\expandafter\@temppatha\@temppathb}% \pgfsyssoftpath@setcurrentpath\@temppatha } \def\@appendnamedpathforactions#1{% \pgfsyssoftpath@getcurrentpath\@temppatha \expandafter\let\expandafter\@temppathb\csname tikz@intersect@path@name@#1\endcsname \expandafter\def\expandafter\@temppatha\expandafter{\csname @temppatha\expandafter\endcsname\@temppathb}% \let\tikz@actions@path\@temppatha } \tikzset{ use path for main/.code={% \tikz@addmode{% \expandafter\pgfsyssoftpath@setcurrentpath\csname tikz@intersect@path@name@#1\endcsname }% }, append path for main/.code={% \tikz@addmode{% \@appendnamedsoftpath{#1}% }% }, use path for actions/.code={% \expandafter\def\expandafter\tikz@preactions\expandafter{\tikz@preactions\expandafter\let\expandafter\tikz@actions@path\csname tikz@intersect@path@name@#1\endcsname}% }, append path for actions/.code={% \expandafter\def\expandafter\tikz@preactions\expandafter{\tikz@preactions \@appendnamedpathforactions{#1}}% }, use path/.style={% use path for main=#1, use path for actions=#1, }, append path/.style={% append path for main=#1, append path for actions=#1 } } \makeatother \begin{tikzpicture} \pgfmathsetmacro\bigside{7} \pgfmathsetmacro\smallsidedelta{0.5} %cuts \draw[rounded corners=12pt, name path=outside] (0,0) rectangle (\bigside,\bigside); \draw[dotted, rounded corners=12pt, name path=inside] (\smallsidedelta,\smallsidedelta) rectangle (\bigside-\smallsidedelta,\bigside-\smallsidedelta); %remove before cutting or printign. Just as reference grid %backside print \tikzfillbetween[of=inside and outside] {white}; %print on transparent plastic so this is needed for better readability %frontside print \pgfmathsetmacro\degreesmallticksize{0.2} \pgfmathsetmacro\degreemidticksize{0.35} \pgfmathsetmacro\outerradius{sqrt(2*\bigside/2*\bigside/2)} \path[rounded corners=12pt, name path=degrees short] (\degreesmallticksize,\degreesmallticksize) rectangle (\bigside-\degreesmallticksize,\bigside-\degreesmallticksize); \path[rounded corners=12pt, name path=degrees mid] (\degreemidticksize,\degreemidticksize) rectangle (\bigside-\degreemidticksize,\bigside-\degreemidticksize); \begin{scope} [even odd rule] %small ticks \clip[use path=outside, append path=degrees short]; \foreach \deg in {0, ..., 359} { \pgfmathsetmacro\degmod{mod(\deg,5)} \pgfmathtruncatemacro{\itest}{ifthenelse(\degmod==0,1,0)} \ifnum\itest=0 \draw[thin] (\bigside/2,\bigside/2) -- ({\bigside/2+\outerradius*cos(\deg)},{\bigside/2+\outerradius*sin(\deg)}); \fi } \end{scope} %had to add a second scope and for loop since the clipped area is different \begin{scope} [even odd rule] %mid ticks \clip[use path=outside, append path=degrees mid]; \foreach \deg in {0, ..., 359} { \pgfmathsetmacro\degmod{mod(\deg,5)} \pgfmathtruncatemacro{\itest}{ifthenelse(\degmod==0,1,0)} \ifnum\itest=1 \draw[thick] (\bigside/2,\bigside/2) -- ({\bigside/2+\outerradius*cos(\deg)},{\bigside/2+\outerradius*sin(\deg)}); \fi } \end{scope} \end{tikzpicture} \end{document} And the output is the following: I would now like to add a label at the inner end of each thick (5°) tick, displaying the corresponding degree value (0–355), like this: Now a few nuances: The numbers must always face towards the inside, with the exception, if possible, of the bottom row of numbers from 135° to 225°. When numbers get big, they don't have enough space to fit unless the labels become too small to read (actual printing size of the protractor will be something like 7x7 or 8x8cm). So they need to be shifted in such a way that they fit. 355 in the provided image is a clear example of what I mean. I can consider shifting them radially as well, but they need to stay to the outside of the dotted line, which I can make a little smaller. I really don't know where to start and didn't manage to find anything online. Thank you for your time!

The question arised from the previous link and the luadraw solution. I am using luadraw to visualize the surface z = x^2 + y^2 together with the intersection curve corresponding to the direction u = (1,0). I would like to know whether it is possible to: Label the coordinate axes $x$, $y$, and $z$, Label the point $c = (0,0)$, Indicate the direction $u = (1,0)$, And label the function $F(t) = t^2$ corresponding to the intersection curve. When I try to use Dtext3d, the document compiles but the output appears blank in Overleaf. Is there a reliable way to add these labels when using luadraw? \documentclass[border=5pt]{standalone} \usepackage[svgnames]{xcolor} \usepackage[3d]{luadraw} \usepackage{fourier-otf} \usepackage{tikz} \begin{document} \begin{luadraw}{name=paraboloid} local g = graph3d:new{ window3d = {-2,2,-2,2,0,8}, window = {-4.5,4,-3,9.5}, size = {10,10,0}, viewdir = perspective("central",30,50,20) } -- Surface local S = cartesian3d(function(x,y) return x^2+y^2 end, 2,-2,-2,2) -- Direction local c = Origin local u = M(1,0,0) local N = pt3d.prod(u, vecK) -- Intersection curve local Curve = g:Intersection3d(S, {c,N}) -- Draw surface g:Dfacet(S, {usepalette={palGasFlame,"z"}, edgecolor="gray", clip=true}) -- Draw curve g:Dedges(Curve, {hidden=true, color="Navy", width=12}) -- Axes g:Dline3d({Origin, M(2,0,0)}, {color="black", width=1, dash="dotted"}) g:Dline3d({Origin, M(0,2,0)}, {color="black", width=1, dash="dotted"}) g:Dline3d({Origin, M(0,0,6)}, {color="black", width=1, dash="dotted"}) g:Show() \end{luadraw} % ---- 2D overlay labels (safe in Overleaf) ---- \begin{tikzpicture}[overlay] \node at (3.7,4.2) {$x$}; \node at (1.1,4.8) {$y$}; \node at (2.5,7.3) {$z$}; \end{tikzpicture} \end{document}

In §331 of tex.web we have this: first:=1; ... if not init_terminal then goto final_end; first:=last+1; {|init_terminal| has set |loc| and |last|} So, before input_ln, which is called by init_terminal, we have: loc is 0, first is 1, last is 0. Let's type x<return> in response to **. Then after init_terminal we will have: loc is 1, first is 1, last is 2. And then (due to above snippet) first will be 3. This means that first line of input is permanently kept in buffer array throughout the entire TeX job. And so the length of the first line will restrict the length of line that TeX can read. In particular, one and the same file will compile cleanly if file name is relative, and will fail to compile if file name is absolute. Why first line of input is kept in buffer array?

A MWS is as follows. \documentclass{exam-zh} \makeatletter \DeclareSymbolFont{AMSa}{U}{msa}{m}{n} %\DeclareSymbolFont{AMSb}{U}{msb}{m}{n} \DeclareMathSymbol{\therefore}{\mathrel}{AMSa}{"29} \DeclareMathSymbol{\because}{\mathrel}{AMSa}{"2A} \makeatother \begin{document} $\because ABCD=\therefore ABCD$ \end{document} As you see, the sizes of \because and \therefore in exam-zh are very small although I invoke them from amssymb. How to fix this to make the sizes of them be normal when invoking them from amssymb?

\documentclass{article} \usepackage[font=small, labelfont=bf, format=hang]{caption} \usepackage{tabularray} \usepackage{tblr-extras} \UseTblrLibrary{amsmath, booktabs, caption} \begin{document} \begin{table}[h] \centering \begin{talltblr}[caption={A talltblr table.}]{colspec={cc}} \toprule a & b\\ \midrule x & y\\ \bottomrule \end{talltblr} \end{table} \end{document} Using the code above, I get the following result for my talltblr (i.e. the caption width is limited to the table width). I tried the approach from here: \documentclass{article} \usepackage[font=small, labelfont=bf, format=hang]{caption} \usepackage{tabularray} \usepackage{tblr-extras} \UseTblrLibrary{amsmath, booktabs, caption} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \DefTblrTemplate{firsthead}{caption}{% \makebox[\tablewidth]{\parbox{\columnwidth}{% \UseTblrTemplate{caption}{normal}% }}% } \SetTblrTemplate{firsthead}{caption} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \begin{document} \begin{table}[h] \centering \caption{A regular table. A regular table. A regular table. A regular table. A regular table. A regular table. A regular table. A regular table. A regular table.} \begin{tabular}{cc} \toprule a & b\\ \midrule x & y\\ \bottomrule \end{tabular} \end{table} \begin{table}[h] \centering \caption{A tblr table. A tblr table. A tblr table. A tblr table. A tblr table. A tblr table. A tblr table. A tblr table. A tblr table. A tblr table. A tblr table.} \begin{tblr} { colspec={cc} } \toprule a & b\\ \midrule x & y\\ \bottomrule \end{tblr} \end{table} \begin{table}[h] \centering \begin{talltblr} [ caption={A talltblr table. A talltblr table. A talltblr table. A talltblr table. A talltblr table. A talltblr table. A talltblr table. A talltblr table.} ] { colspec={cc} } \toprule a & b\\ \midrule x & y\\ \bottomrule \end{talltblr} \end{table} \end{document} Now the caption has the right width, but it is too close to the table itself. Also, the caption font is too big and the label is not bold, which I can fix / hack if I add \SetTblrStyle{caption-tag}{font=\small\bfseries} \SetTblrStyle{caption-text}{font=\small} but I'm not sure if this is the way to go (and it does not fix the issue of the caption touching the table). I also tried to have a look at the default caption definitions myself in the source code but I just don't understand even remotely enough of LaTeX3). Edit for clarity: I don't need to be able to control table, talltblr, and tblr with \captionsetup, I am rather looking for a way to get the same consistent captions for figure, table, tblr and talltblr environments in my document. I realise this is not easy, especially since the different caption style for talltblr is apparently a feature: I don't think it is a bug. In many aspects, tabularray is different from traditional tables https://github.com/TeXackers/tabularray/issues/255#issuecomment-1142833319)

In the left-hand figure, I would like to improve the visualization so that the red curve is more clearly visible. \documentclass[12pt,b5paper,twoside,openany]{book} \usepackage[utf8]{inputenc} \usepackage[english]{babel} \usepackage{amsmath,amssymb,amsfonts,amsthm} \usepackage{graphicx} \usepackage{xcolor} \usepackage{tikz} \usepackage{tikz-3dplot} \usepackage{pgfplots} \pgfplotsset{compat=1.18} \hypersetup{colorlinks=true,linkcolor=black,citecolor=black} \newtheorem{example}{Example} \setlength{\parindent}{0pt} \begin{document} \begin{example} Consider the function \[ f(x,y)=x^2+y^2, \] the point \[ c=(0,0), \] and the direction \[ u=(1,0). \] To study the variation of $f$ at $c$ in the direction $u$, we define the one-variable function \[ F(t)=f(c+tu). \] In this case, \[ c+tu=(t,0), \] and therefore \[ F(t)=f(t,0)=t^2. \] Thus, when we move away from $c$ in the direction $u$, the values of $f$ vary according to the quadratic function $F(t)=t^2$. The directional derivative of $f$ at $c$ in the direction $u$ is given by \[ f'(c;u)=F'(0). \] Since \[ F'(t)=2t, \] we obtain \[ f'(c;u)=F'(0)=0. \] \end{example} \bigskip \begin{center} \begin{tikzpicture} % --- SURFACE --- \begin{axis}[ at={(0,0)}, anchor=origin, view={120}{25}, axis lines=center, axis line style={->}, xlabel={$x$}, ylabel={$y$}, zlabel={$z$}, domain=-2:2, y domain=-2:2, samples=30, samples y=30, width=8cm, height=8cm ] % Surface z = x^2 + y^2 \addplot3[surf, opacity=0.4] {x^2+y^2}; % Curve corresponding to F(t) \addplot3[very thick, red, domain=0:1.2, samples=100] ({x},{0},{x^2}); \end{axis} % --- GRAPH OF F(t) --- \begin{axis}[ at={(7cm,0)}, anchor=origin, axis lines=middle, axis line style={->}, xlabel={$t$}, ylabel={$F(t)$}, domain=-1.5:1.5, samples=200, width=7cm, height=6cm ] \addplot[very thick, red] {x^2}; \node at (axis cs:1,1) [red, anchor=west] {$F(t)=t^2$}; \end{axis} \end{tikzpicture} \end{center} \end{document}

When typing a document in Thai with babel (using XeLaTeX via MikTeX), sometimes it outputs with these spaces between words, for example: MWE: \documentclass[12pt,a4paper]{article} \usepackage[no-math]{fontspec} \usepackage[thai,provide=*]{babel} \babelfont[thai]{rm}[Scale=1.33333]{TH Sarabun New} \renewcommand\baselinestretch{1.4} \begin{document} เดิมแผ่นดินเมืองจีนทั้งปวงนั้น เปนสุขมาช้านานแล้วก็เปนศึก ครั้นศึกสงบแล้วก็เปนสุข มีพระมหากษัตริย์ทรงพระนามพระเจ้าจิวบูอ๋อง แลพระวงศ์ได้เสวยราชย์ต่อ ๆ ลงมาเปนหลายพระองค์ ได้ความสุขมาถึงเจ็ดร้อยปี จึงมีผู้ตั้งแขงเมืองถึงเจ็ดหัวเมือง ครั้งนั้นพระเจ้าจิ๋นอ๋องได้เสวยราชย์ในเมืองจิ๋นก๊กให้ไปตีเอาหัวเมืองทั้งเจ็ดนั้น เข้าอยู่ในอาณาจักรพระเจ้าจิ๋นอ๋องทั้งสิ้น ครั้นอยู่มาพระเจ้าจิ๋นอ๋องเสียแก่ฮั่นฌ้อ แล้วฮั่นโกโจกับฮั่นฌ้อรบกัน จึงได้ราชสมบัติแก่ฮั่นโกโจ ฮั่นโกโจแลพระราชวงศ์ได้เสวยราชสมบัติต่อ ๆ มาในแผ่นดินจีนนั้นถึงสิบสององค์ มีขุนนางคนหนึ่งชื่ออองมังเปนขบถชิงเอาราชสมบัติได้ เปนเจ้าแผ่นดินอยู่สิบแปดปี แล้วจึงมีหลานพระเจ้าฮั่นโกโจชื่อฮั่นกองบู๊จับอองมังฆ่าเสียชิงเอาราชสมบัติได้เสวยราชย์สืบวงศ์มาสิบสององค์ พระองค์ได้เสวยราชย์ที่สุดนั้น ทรงพระนามพระเจ้าเหี้ยนเต้ จึงแตกเปนสามเมือง ภาษาจีนเรียกว่า สามก๊ก \end{document} How to stop LaTeX from doing this? (I have read babel-thai documentation, but none of the macros seems to work.)

In circuitikz symbol ccgsw I like to change the color of arrow (by simple in-line selection, if is possible) and arrow head for example from stealth to Straight Barb. How to do this? \documentclass[margin=3mm]{standalone} \usepackage{xcolor} \usepackage{circuitikz} \begin{document} \begin{circuitikz} \draw[gray] (0,0) to [ccgsw={$t=t_b$}] (2,0) ; \end{circuitikz} \end{document}

Why would biblatex fill out this entry with Cyrillic while the language being specified is Serbian written in Latin? \documentclass{article} \begin{filecontents*}{test.bib} @book{Mitri-vol1-sr, title={Cauchyjev račun ostataka sa primenama}, author = {Mitrinović, Dragoslav S. and Kečkić, Jovan D.}, series = {Matematički problemi i ekspozicije}, volume = {8}, year = {1978}, publisher = {Naučna Knjiga}, address = {Beograd}, pages = {271}, langid = {serbian}, } \end{filecontents*} \usepackage{fontspec} \newfontfamily\cyrillicfont{STIX Two Text} \usepackage{polyglossia} \usepackage{csquotes} \setmainlanguage{english} \setotherlanguage{serbian} \usepackage[style=authoryear, backend=biber, autolang=other, ]{biblatex} \addbibresource{test.bib} \begin{document} \nocite{*} \printbibliography \end{document}

I want to define my own style of Python, so I write \documentclass{article} \usepackage{listings, xcolor} \lstset { basicstyle = \ttfamily\small, frame = leftline, framerule = 1pt, } \lstdefinelanguage{python}{ morekeywords = {python, red}, keywordstyle = {\bfseries\color{red}}, rulecolor = {\color{red}}, } \begin{document} \begin{lstlisting}[language=python] python, red \end{lstlisting} \end{document}% after compiling with texlive 2025, I got: It did not work. I thought it might be the problem with the default settings of listings.sty package, i.e. lstlang1.sty. However, I can change the style of matlab language: \documentclass{article} \usepackage{listings, xcolor} \lstset { basicstyle = \ttfamily\small, frame = leftline, framerule = 1pt, } \lstdefinelanguage{python}{ morekeywords = {python, red}, keywordstyle = {\bfseries\color{red}}, rulecolor = {\color{red}}, } \lstdefinelanguage{Matlab}{ morekeywords = {Matlab, lime}, keywordstyle = {\bfseries\color{lime}}, rulecolor = {\color{red}}, } \begin{document} \begin{lstlisting}[language=python] python, red \end{lstlisting} \begin{lstlisting}[language=Matlab] Matlab, lime \end{lstlisting} \end{document}% The output is: I wonder why it happened and how I can actually change the style of "python" language. EDIT: I found that this does not work only on TexLive 2025; my version of listings is 76899, and it's cat-version is 1.11b. If I compile this file with 1.10a and TexLive 2024 on Overleaf, all things worked well. EDIT: I found that listings package is insensitive to the language name, Python, python, and PYTHon point to the same language

Foreign words or phrases inside a mostly monolingual document should usually be displayed in italic. How can this be achieved automatically using babel? I have produced the following code: \documentclass{article} \usepackage{lipsum} \usepackage[french, british, italian]{babel} % Font for the main language \babelfont{rm}{ebgaramond} % Font for foreign languages, inverting roman and italic \babelfont [french, british]{rm}{ebgaramond-Italic} \begin{document} MAIN LANGUAGE \lipsum[1] \vspace{1em} FOREIGN LANGUAGE \foreignlanguage{british}{\lipsum[1]} \end{document} However, I can see some problems in my approach: If I define new features for the font (ligatures, character variants...) I must repeat them for both the main and the foreign font; If I add new languages I must remember to add them to the list of foreign languages to which the italic must be applied. I am quite sure that the amazing babeltransform can easily make it more automatic.

Can someone suggest a method to have Roman (upright) capitals in italic texts, in the style of Aldus Manutius and of the early Renaissance books? I believe it could probably be done with the lua.otf.font.handler but I don't know where to start. Also, I think at least two aspects need to be kept in mind: Efficiency: the approach should not be too heavy, in order to be usable also for large documents with many paragraphs in italics; Kerning: it will probably be required to define new kerning pairs for many (or every) capital, and I expect this to be done manually depending on the font used in the document. As an example to test this: \documentclass{article} \usepackage{lipsum} \usepackage{ETbb} % A font in the style of Aldus Manutius \begin{document} A B C D E F G H I J K L M N O P Q R S T U V W X Y Z \vspace{1em} \textit{A B C D E F G H I J K L M N O P Q R S T U V W X Y Z} \vspace{1em} \lipsum[1] \vspace{1em} \textit{\lipsum[1]} \end{document} Every suggestion, even if not a complete answer, is very appreciated.

I'm trying to make a title with \newtheorem{case}{Caso} (My code is in Portuguese-Portugal) and it outputs Caso X. "X" being the next number. So here is the thing, I actually need to reset the "X" value, and I have tried the [theorem] parameter, but it doesn't work for me so can anyone help? Here is my code: \documentclass[12pt]{report} \usepackage[]{amsmath,amsthm,amssymb,amscd} \usepackage[a4paper,margin=25mm]{geometry} \usepackage{babel} \usepackage{pgfplots} \usepackage{multirow} \usepackage{booktabs} \usepackage{framed} \newtheorem{case}{Caso} \begin{document} \begin{case} Não conhecemos a distribuição de $X_1$ ou $X_2$, mas os tamanhos das amostras não apresentão assimetrias exageradas. \end{case} \begin{case} % Some text here % \end{case} % Reset the X value % \begin{case} % More text here, but with it saying "Caso 1." % \end{case} \end{document} If you want something else please tell me.

I want to produce the bracket like this: \documentclass{article} \begin{document} There is a bracket below with text. \end{document}

I am trying to make this bullet points look nice in three lines but here is the problem. it won't fit. Here is my code \documentclass{beamer} \setbeamertemplate{theorems}[numbered] \begin{frame} \frametitle{Definitions} \begin{definition}[Normed Linear Space] A linear space $\mathbb{X}$ is a normed linear space if, to each vector $x\in \mathbb{X}$, there is a real-valued norm $\left\|x\right\|$ that satisfies \begin{itemize}[$\bullet$] \item $\left\|x\right\| \geq 0$ for all $x\in \mathbb{X}$, with $\left\|x\right\|=0$ if and only if $x=0$ \item $\left\|x+y\right\| \leq \left\|x\right\| + \left\|y\right\| $ for all $x,y\in \mathbb{X}$ \item $\left\|ax\right\|=|a|\left\|x\right\|$ for all $a\in \mathbb{R}$ and $x\in \mathbb{X}$ \end{itemize} Here is what I got