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I have a problem: After creating my custom character map "MyRules.lua", I can type the characters perfectly, but I cannot type any commands inside \textArab{}. This file 'MyRules.lua' local TransTable = { -- 1. معالجة الحروف المشددة أولاً (لأنها تتكون من رمز مكرر) {a = "%^t", b = "ث"}, {a = "%^H", b = "خ"}, {a = "%^d", b = "ذ"}, {a = "%^r", b = "ز"}, {a = "%^s", b = "ش"}, {a = "%^S", b = "ض"}, {a = "%^T", b = "ظ"}, {a = "%^A", b = "غ"}, {a = "%:y", b = "ي"}, } singlefv = { {a="e", b="ء"}, {a="a", b="ا"}, {a="b", b="ب"}, {a="t", b="ت"}, {a="j", b="ج"}, {a="H", b="ح"}, {a="d", b="د"}, {a="r", b="ر"}, {a="s", b="س"}, {a="S", b="ص"}, {a="T", b="ط"}, {a="f", b="ف"}, {a="A", b="ع"}, {a="f", b="ف"}, {a="q", b="ق"}, {a="k", b="ك"}, {a="l", b="ل"}, {a="m", b="م"}, {a="n", b="ن"}, {a="h", b="ه"}, {a="w", b="و"}, {a="y", b="ى"}, {a="c", b="c"}, } LuaAr = {} function LuaAr.process(text) local inside = text -- حلقة تكرارية تمر على الجدول من أول سطر إلى آخره for i = 1, #TransTable do inside = string.gsub(inside, TransTable[i].a, TransTable[i].b) end for i = 1,#singlefv do inside = string.gsub(inside, singlefv[i].a, singlefv[i].b) end -- إرجاع النص النهائي بعد تحويله بالكامل return inside end This is the code \documentclass{article} \usepackage{amsmath,amssymb,amsfonts} \usepackage{comment,luacode,xstring} \usepackage[no-math]{fontspec} \usepackage{polyglossia} \usepackage{xspace} \setdefaultlanguage[numerals=maghrib]{arabic} % from polyglossia \setotherlanguage{english} \newfontfamily\arabicfont[Script=Arabic, Mapping=maghrib]{Times New Roman}%Amiri \newfontfamily\englishfont[Script=Arabic,Mapping=maghrib]{Times New Roman} \newfontfamily\fontmath[Script=Arabic,AutoFakeBold=.7,%FakeSlant=-0.2 WordSpace =.8,PunctuationSpace=2, SizeFeatures={ {Size={-8},FakeStretch=1.1,FakeBold=1.5}, {Size={8-14}}, {Size={14-}}, }]{MyFonttwo002-VF.ttf} \directlua{dofile(kpse.find_file("MyRules.lua"))} \newcommand{\trans}[1]{% \bgroup \fontmath % \textdir TRT % جعل اتجاه الكتابة من اليمين إلى اليسار \directlua{tex.sprint(LuaAr.process(\luastringN{#1}))}\egroup% } \makeatletter \def\arabtexcodes{\catcode`^=11\relax\catcode`_=11\relax} %\let\arabtex@codes\arabtexcodes \makeatother \newcommand{\textArab}[1]{% \bgroup% \arabtexcodes \fontmath \ifvmode\leavevmode\fi% \directlua{tex.sprint(LuaAr.process(\luastring{#1}))}% \egroup% } \newcommand{\ar}[1]{%->arb-math inline {\ignorespaces\textArab{#1}} } \newcommand{\afrac}[2]{ {\bfseries\boldmath\fontspec{MyFonttwo002-VF.ttf}[FakeStretch=1.1,FakeBold=1.5]\ensuremath{\!\frac{\text{\textArab{#1}}}{\text{\textArab{#2}}}}} } \begin{document} \textArab{0123456789\\1.2\\ e a b t ^t j H^H d ^d r ^r s ^s S ^S T ^T A ^A f q k l m n h w y c }% $\frac{num}{den}$ \\ \ar{a + \afrac{num}{den}} \end{document} I have a problem. ! Incomplete \iffalse; all text was ignored after line 57. <inserted text> \fi <*> document.tex The file ended while I was skipping conditional text. This kind of error happens when you say `\if...' and forget the matching `\fi'. I've inserted a `\fi'; this might work. ! Emergency stop. <*> document.tex *** (job aborted, no legal \end found) Here is how much of LuaTeX's memory you used: 6259 strings out of 475695 100000,794899 words of node,token memory allocated 1050 words of node memory still in use: 6 hlist, 1 vlist, 2 rule, 1 local_par, 1 dir, 32 glue, 4 kern, 6 penalty, 44 glyph, 12 attribute, 52 glue_spec, 12 attribute_list, 1 temp, 3 if_stack, 2 writ e nodes avail lists: 2:1,4:1,5:6,7:1 29001 multiletter control sequences out of 65536+600000 31 fonts using 14732263 bytes 73i,1n,93p,291b,265s stack positions out of 10000i,1000n,20000p,200000b,200000s ! ==> Fatal error occurred, no output PDF file produced!

Let suppose I have csv file as mentioned below, 1st row not printed in the output SlNo,Name,Affiliation 1,John Deo,"A College, A City" 2,Piter Deo, A College Here is my MWE \documentclass{article} \usepackage{csvsimple-l3} \usepackage{tikz} \begin{document} \csvreader[ % separator=semicolon, head to column names ]{participants.csv}{}{% \begin{tikzpicture} \node[] at (1.2,2.45) {\Name}; \node[] at (1.2,4.45) {\Affiliation}; \end{tikzpicture} \newpage } \end{document}

In using the titlesec package to define my own section label, the horizontal alignments for the section label are different for the table of contents and the regular section headers. In the image below, you can see how the first section heading is placed to the right. How can I fix this problem? MWE: \documentclass{article} \usepackage[showframe]{geometry} \usepackage{tikz} \usepackage[explicit]{titlesec} \titleformat{\section}{ \gdef\sectionlabel{} \LARGE\bfseries\sffamily %font }{ \gdef\sectionlabel{\thesection\quad} }{ 0in }{ \begin{tikzpicture} \fill[blue] (0,0) rectangle (\textwidth, 1cm); \node[anchor=mid west] at (0, 0.5cm) {\color{white}\sectionlabel#1}; \end{tikzpicture} } \begin{document} \tableofcontents \section{Section Name 1} \noindent Text. \end{document}

I'm using the Exam class (well, a customize version of it, but it shouldn't lmatter too much), and I would like to have some equation in the normal text (number for example "Eq. 1.2") and some other numbering when writing the solutions answers (for example "Sol. eq. 1.2a") while preserving all the equation environments (including the ones from asmmath) as untouched as possible. How can I do so? One dumb solution will be to use a completely new counter (i.e. soleqn), starred version of the equation environments + manual tagging/labelling (something like in https://tex.stackexchange.com/a/661520, but I'm wondering if it's possible to tell LaTex to replace any call to counter (\steptocounter, \thecounterto, \resetcounter, etc) equation by calls to counter soleqn when entering some special environment (and reverting to the normal behaviour when leaving such environment) [perhaps storing the equation counter value somewhere, resetting equation' to 0, linking soleqnoperation toeqution, and restoring the original equation` value when leaving?].

I was wondering whether CTAN informs the LaTeX community every so often (say, every month) about new packages that have been uploaded and accepted. Or do people have to search for that themselves?

I would like to put vertical and horizontal lines in the innermost four cells. How to? \documentclass{scrartcl} \usepackage{colortbl} % \begin{document} \rowcolors{1}{green}{green} \color{blue}% \begin{tabular}{cccc} \rowcolor{blue} \textcolor{red}{$\Omega$} & \textcolor{red}{$T$} & \textcolor{red}{$\overline{T}$} & \textcolor{red}{$\Sigma$} \\ % \cellcolor{blue}\textcolor{red}{$K$} & 1960 & 40 & \cellcolor{blue}\textcolor{red}{2000} \\ % \cellcolor{blue}\textcolor{red}{$\overline{K}$} & 4900 & 93100 & \cellcolor{blue}\textcolor{red}{98000} \\ % \rowcolor{blue} \textcolor{red}{$\Sigma$} & \textcolor{red}{6860} & \textcolor{red}{93140} & \textcolor{red}{100000} \end{tabular} \end{document} Note: The result is definitely very ugly, pls don't comment on that. It is due to the reduction of a far more elaborated table to get a somehow minimal example. Thanks!

I want to create a command which produces sentences with words spaced at custom. The problem is: after employing the command, all text seems to have the used distance between words. What is wrong here? With thanks. My code is: \documentclass{beamer} \usepackage{ragged2e} \justifying \usepackage{lipsum} \newcommand{\mytext}[2]{\fontdimen2\font=#1 #2} \begin{document} \begin{frame} \mytext{4.5ex}{This is my text with words spaced by 4.5ex}. \bigskip This is my normal text: \lipsum[1][1-2] \end{frame} \end{document}

Considering the equation below, I found that when using \displaystyle, the space between the numerator in the second expression (i.e., t>t_{CP} case) and the fraction bar becomes disproportionate to the space between the numerator and the denominator in the first case. \begin{equation} P(t) = \begin{cases} \displaystyle \frac{W'}{t+\frac{W'}{P_{max}-CP}}+CP,&~~~~t\leq t_{CP}\\ \displaystyle \frac{W'}{t+\frac{W'}{P_{max}-CP}}+CP-A\cdot \ln\frac{t}{t_{CP}},&~~~~t>t_{CP} \end{cases} \end{equation} With \displaystyle: And without: A dummy fix to the version using \displaystyle is to introduce a new empty line between the two cases; nevertheless, it may not be too elegant besides making the equation take up significantly more space overall. I wonder what the best way is to avoid the expression getting crowded, and the explanation is behind this observation? I am using amsmath and amsfonts. Edit: Several nice solutions have been proposed. I would also be interested in why the spacing between the fraction bar and the symbol in the numerator changed seemingly when using \displaystyle?

For example, how can I create an image in a format similar to the Unicode UCB image on Wikipedia? https://commons.wikimedia.org/wiki/User:Antonsusi/Unicode Unicode UCB images like this one: I've tried this: \documentclass[varwidth=16cm, border=0pt]{standalone} \usepackage{array} \usepackage{fontspec} \usepackage{luacode} \usepackage[table]{xcolor} \setmainfont{NewCM10-Regular.otf} % or Other Unicode block fonts \setlength{\tabcolsep}{0pt} \renewcommand{\arraystretch}{1} \newcolumntype{L}{>{\centering\arraybackslash}p{0.5cm}} \begin{luacode} function print_unicode_grid(start_hex, end_hex) local start_code = tonumber(start_hex, 16) local end_code = tonumber(end_hex, 16) local tfmdata = font.getfont(font.current()) local characters = tfmdata and tfmdata.characters tex.sprint("\\noindent\\begin{tabular}{|" .. string.rep("L|", 16) .. "}") tex.sprint("\\hline") local current = start_code while current <= end_code do for i = 0, 15 do local code = current + i if code <= end_code then local hex_str = string.format("U+%04X", code) tex.sprint( "{\\fontsize{3pt}{3.5pt}\\selectfont\\textsf{\\textbf{" .. hex_str .. "}}}" ) end if i < 15 then tex.sprint("&") end end tex.sprint("\\\\ \\hline") for i = 0, 15 do local code = current + i if code <= end_code then local has_glyph = false if characters and characters[code] then has_glyph = true end if has_glyph then tex.sprint( "{\\fontsize{14pt}{14pt}\\selectfont " .. utf8.char(code) .. "}" ) else tex.sprint("\\cellcolor{gray!30}\\rule{0pt}{14pt}") end end if i < 15 then tex.sprint("&") end end tex.sprint("\\\\ \\hline") current = current + 16 end tex.sprint("\\end{tabular}") end \end{luacode} \newcommand{\UnicodeGrid}[2]{% \directlua{print_unicode_grid("#1", "#2")}% } \begin{document} \UnicodeGrid{0370}{03FF} \end{document} However, U+xxxx appears to be twice as tall as the text, and the other half of the display area is blank. Is there a way to shorten the U+xxxx line so that the output matches the input exactly—meaning there won't be any extra whitespace or missing TeX display content?

I'm writing a translator from OmniGraffle (left diagram) to tikz and I've run into a bit of a problem for translating lines (right diagram). Lines in OmniGraffle are specified as a start point, middle vertices and an ending point. I can replicate the exact shape of the line from the OmniGraffle points by using tikz plot/coordinates in a draw but I'm unsure how to change the code to end at the shape boundary. Here's my MWE \documentclass{article} \usepackage{tikz} \begin{document} \begin{tikzpicture} \draw (36pt,-36pt) circle [radius=36pt ] node [] (S0) { S0}; \draw[red] plot [smooth, tension=1] coordinates { (S0) (-17.600000262260437pt, 3.89259546372341pt) (15.955999737740058pt, 28.233391483626292pt) (S0)}; \draw[red] plot [smooth, tension=1] coordinates { (36pt, -36pt) (87.40297565709261pt, 7.120001628994942pt) (57.999990582466125pt, 25.534386508502394pt) (36pt, -36pt)}; \draw[red] plot [smooth, tension=1] coordinates { (36pt, -36pt) (-15.128618137809553pt, -70.48571669739613pt) (10.699999623000622pt, -91.0802335745775pt) (36pt, -36pt)}; \end{tikzpicture} \end{document} Note, this is an early phase so things like line widths, arrowheads, text formatting, and converting out of pt coordinates are later tasks.

I found this nice solution regarding the question Multiple citations of the same reference, each time with a different page number. However, it works only for the 'numeric' biblatex bibliographic style. Since my knowledge of low-level TeX/LaTeX commands is very limited, how that solution could be adapted to work also for the 'authoryear' style?

I am creating a \keystroke command using TikZ to typeset keyboard keys as small boxes: Code \documentclass{article} \usepackage{xcolor} \usepackage{tikz} \usetikzlibrary{shadows} \newcommand*\keystroke[1]{% \tikz[baseline=(key.base)] \node[% draw, fill=black!10, drop shadow={shadow xshift=0.15ex,shadow yshift=-0.15ex,fill=black,opacity=0.7}, rectangle, rounded corners=1pt, inner xsep=1.5pt, inner ysep=1.5pt, line width=0.4pt, minimum width=0em, minimum height=0em, font=\ttfamily\small ](key) {#1} ; } \begin{document} Once Blender has started, press \keystroke{A} to select all existing \end{document} Output Questions I would like to solve two problems: Question Q1: Baseline alignment: How can I vertically position the Tikz node so that the box properly aligned with the baseline of the text outside that node? Question Q2: Horizontal spacing: Why is there apparently more horizontal space after the \keystroke node than before it? How can I make the spacing around the node consistent, so that press \keystroke{A} to has the same spacing before and after the key? Edit (my goal in detail)

My code are: \documentclass[twocolumn]{article} \usepackage{array} \usepackage{tabularray} \UseTblrLibrary{booktabs} \usepackage{lipsum} \SetTblrInner{ rowsep=0pt, row{1}={l,b}, hborder{1}={belowspace=6pt}, hborder{2}={abovespace=2pt,belowspace=6pt}, hborder{Z}={abovespace=6pt}, width=\textwidth} \begin{document} \lipsum[1] \begin{table} \caption{Value of Grid Convergence Index.\label{table1-09544062261479876}} \begin{tblr}{@{\extracolsep\fill}llll@{\extracolsep\fill}} \toprule {} & {\textit{Cpmin}} & {\textit{Cpmin}} & {\textit{Cpmin}}\\ \midrule {GCI N1-N2} & {0.95\%} & {0.46\%} & {0.86\%}\\ {GCI N2-N3} & {0.59\%} & {0.33\%} & {0.58\%}\\ \bottomrule \end{tblr} \end{table} \lipsum[2-3] \begin{table*} \caption{Value of Grid Convergence Index.\label{table1-09544062261479876}} \begin{tblr}{@{\extracolsep\fill}llll@{\extracolsep\fill}} \toprule {} & {\textit{Cpmin}} & {\textit{Cpmin}} & {\textit{Cpmin}}\\ \midrule {GCI N1-N2} & {0.95\%} & {0.46\%} & {0.86\%}\\ {GCI N2-N3} & {0.59\%} & {0.33\%} & {0.58\%}\\ \bottomrule \end{tblr} \end{table*} \lipsum[1-5] \end{document} This produced the output as: How can I expand table into column/full width (using table*) by auto?

I have the two commands defined in the document, \documentclass[12pt, a4paper]{article} \usepackage{fontsetup} \DeclareMathOperator*{\prolim}{\underleftarrow{\lim}} \DeclareMathOperator*{\indlim}{\underrightarrow{\lim}} \begin{document} \begin{equation} \indlim_{i \in I} X_{i} \end{equation} \begin{equation} \prolim_{i \in I} X_{i} \end{equation} \end{document} and with LuaLaTeX, this gives the output The arrows are clearly much shorter and smaler than expected, is there any way I can make the arrows "normal"?

I have this set up. Number of \section{} followed immediately by longtable. All in a chapter. Depending on how large the table is, PDF can end up with section showing on its own at bottom of page. I tried to put \Needspace{10\baselineskip} before \section but this is a hit and miss. sometimes it works and sometimes it does not. I can try to increase the value to 15\baselineskip but how to know this will work all the time? The problem is that the longtable the follows can span more than one page also. Adding an explicit \pagebreak or \newpage before each \section can end up with large empty spaces in pages. I also added \raggedbottom but it did not help in this example below. What is the best way in latex to make sure a section title (or a subsection title also) do not end on its own at end of a page, that works for all cases and for all geometry settings without having to use trial and error each time, as content of tables can change and also amount of text can change. It seems this happens only when a longtable starts right after section title. But I can not be sure. But for now, I need to solve this specific case when longtable follows immediately a section title. It could have something to do with the fact that it is a longtable that follows? Here is MWE \documentclass[12pt]{book} \usepackage{longtable} \usepackage{hyperref} \usepackage{needspace} \usepackage{array} \usepackage{xcolor} \usepackage{pifont} %http : // ctan.org/pkg/pifont \newcommand{\cmark}{\textcolor{blue}{\Large \ding{51}}} \newcommand{\xmark}{\textcolor{red}{\Large \ding{55}}} \newcommand{\notsure}{\ding{103}} % \usepackage{lipsum} \begin{document} \title{my title to solve $\sin x = x$} \tableofcontents \chapter{A} \lipsum[1] some line here some line here some line here some line here some line here some line here some line here some line here some line here some line here some line here some line here some line here some line here \Needspace{10\baselineskip} \section{First order differential equations. Section 1.4 (separable equations). Problems at page 43, Problems at page 88} \begingroup \setlength{\LTleft}{-20cm plus -1fill} \setlength{\LTright}{\LTleft} \begin{longtable}{ |>{\centering\arraybackslash}m{0.6in} |>{\centering\arraybackslash}m{0.6in} |m{3.6in} |>{\centering\arraybackslash}m{0.35in} |>{\centering\arraybackslash}m{0.28in} |>{\centering\arraybackslash}m{0.28in} |>{\centering\arraybackslash}m{0.28in}| } \caption{Lookup table for all problems in current section}\\\hline ID & problem& \multicolumn{1}{c|}{ODE} &{\scriptsize Solved?}&{\scriptsize Maple}&{\scriptsize Mma}&{\scriptsize Sympy} \\\hline \endfirsthead \multicolumn{7}{@{}c@{}}{\parbox{\dimexpr5in+6\tabcolsep-2\arrayrulewidth\relax}{\small\tablename~\thetable\, Lookup table \\ {\footnotesize \emph{Continued from previous page}}\vspace*{1ex}}}\\\hline ID & problem& \multicolumn{1}{c|}{ODE} &{\scriptsize Solved?}&{\scriptsize Maple}&{\scriptsize Mma}&{\scriptsize Sympy} \\\hline \endhead \hline \multicolumn{7}{|r|}{\footnotesize \emph{Continued on next page}}\\\hline \endfoot \hline \endlastfoot \hyperref[41]{41} &1& \[ \begin{array}{>{\displaystyle}r @{\;} >{\displaystyle}l} y^{\prime}+2 y x&=0 \end{array} \] &\cmark&\cmark&\cmark&\cmark\\ \hline \hyperref[42]{42} &2& \[ \begin{array}{>{\displaystyle}r @{\;} >{\displaystyle}l} y^{\prime}+2 x y^{2}&=0 \end{array} \] &\cmark&\cmark&\cmark&\cmark\\ \hline \hyperref[43]{43} &3& \[ \begin{array}{>{\displaystyle}r @{\;} >{\displaystyle}l} y^{\prime}&=y \sin \left(x \right) \end{array} \] &\cmark&\cmark&\cmark&\cmark\\ \hline \hyperref[44]{44} &4& \[ \begin{array}{>{\displaystyle}r @{\;} >{\displaystyle}l} \left(x +1\right) y^{\prime}&=4 y \end{array} \] &\cmark&\cmark&\cmark&\cmark\\ \hline \hyperref[45]{45} &5& \[ \begin{array}{>{\displaystyle}r @{\;} >{\displaystyle}l} 2 \sqrt{x}\, y^{\prime}&=\sqrt{1-y^{2}} \end{array} \] &\cmark&\cmark&\cmark&\cmark\\ \hline \end{longtable} \endgroup \end{document} Compiled with lualatex in TL 2026 gives

I'd like to use LaTeX to create something similar to the “Animation showing the increasing Unicode encoding values” in this video. Do you know of a way to do this? https://youtu.be/o8XvMlCoOac

I would like to find the correct MathJax facility or approach to make MathJax scripts for position-wise addition and subtraction which will produce meaningful result when read by generic browser voice reader. Here "meaningful" is understandable by average (elementary) school student. I understand that the wording of the question title is not specific, but this problem is in the core of MathJax usage, it has to be addressed. Voice reading is a basic requirements in modern schools and colleges. Other offers for the title will be gladly accepted. The two problematic examples are provided below: First, the simple example. Basic position wise addition of decimals, the problem with voice reader (tested in Chrome, by tabbing to MathJax sections) 1) reader adds phantom columns for each of "@{}", which we need to remove the space between columns, 2) the reader goes row-wise, but we need column wise steps to make sense for the algorithm 3) reader ignores horizontal line which marks final result of summation So the first example: $$ \begin{array}{@{}c@{}c@{}c@{}c@{}} & 3 & 4 & . & 5 \\[-0.3em] \text{+} & & 7 \\[-0.3em] \hline & 4 & 1 & . & 5 \end{array} $$ After tabbing to above MathJax fragment in web page, this is what voice reader produces aloud: "Start layout: first row, first column blank, second column blank, third column blank, fouth column three, fith column blank, sixth column four, seventh column blank, eigth column blank, nineth column five, ... " etc. idear is clear. The second question below is for position wise subtractions "American algorithm". (See wikipedia org/wiki/Subtraction .) The voice content is even more difficult for reader and listener. $$ \begin{array}{@{}c @{}c @{}c @{}c @{}} & \tiny{\,\color{red}{1}\,} & \tiny{\,\color{green}{9}\,} & & \tiny{\,\color{blue}{9}\,} & \tiny{\,\color{orange}{10}\,} \\[-0.3em] & \cancel{2} & \cancel{0} & . & \cancel{0} & 0 \\[-0.3em] \text{-} & & 9 & . & 9 & 9 \\[-1em] \hline & 1 & 0 & . & 0 & 1 \end{array} $$ Thank you.

I would like to accessibly strike through some text. Let's start with this: \DocumentMetadata{lang=en,tagging=on,pdfstandard=ua-2} \documentclass{article} \title{Title} \usepackage{ulem} \begin{document} before \sout{struck out} after \end{document} The PDF looks like "before struck out after". Unfortunately, it appears that screen readers cannot tell this has happened: ngPDF.com says that the content is "before struck out after" show-pdf-tags says that the content is "before struckout after" PDFix and Adobe say that the content is "before PathstruckPathPathout after" (Adobe says that the "Path"s are the lines over "struck", " ", and "out") Based on the tagpdf documentation, I created a struckout.css file with .struckout { text-decoration: line-through; } and adjusted the the code to \DocumentMetadata{lang=en,tagging=on,pdfstandard=ua-2, % uncompress, tagging-setup={ role/new-attribute={struckout}{}, css-list-add={struckout.css} } } \documentclass{article} \title{Title} \usepackage{ulem} \NewCommandCopy\oldsout\sout \renewcommand\sout[1]{% \tagstructbegin{tag=Span,attribute-class={struckout}}% \tagmcbegin{tag=Span}% \oldsout{#1}% \tagmcend% \tagstructend% } \begin{document} before \sout{struck out} after \end{document} I can see that the css file has been included, and ngPDF, PDFix and Adobe see that the class has been included. Unfortunately, they all agree that "after" has become an artifact, and show-pdf-tags crashes ("show-pdf-tags:176: assertion failed!"). How can I adjust this to tag the struck through text? (And is a span sufficient, or should I add some actualtext saying this has been struck through?)

I want to plot the above Fig. Using the code below, the curvature are not coming same as the Fig. Please help me get the exact Fig. \documentclass[12pt]{article} \usepackage{tikz} \begin{document} \begin{center} \begin{tikzpicture}[ scale=1.5, thick, vertex/.style={circle, draw=black, fill=white, inner sep=1.5pt, minimum size=6pt} ] % Coordinates \coordinate (v2) at (0, 0); \coordinate (v1) at (-1.5, 0.6); \coordinate (v3) at (1.5, 0.6); \coordinate (v7) at (-1.5, -0.6); \coordinate (v6) at (1.5, -0.6); \coordinate (v8) at (-2.5, 0); \coordinate (v5) at (2.5, 0); \coordinate (v0) at (-3.5, 1.8); \coordinate (v4) at (3.5, 1.8); \coordinate (v10) at (-3.5, -1.8); \coordinate (v9) at (3.5, -1.8); % Continuous Curves % Curve 1: Inner (v0 -> v1 -> v2 -> v3 -> v4) \draw (v0) to[out=-30, in=150] (v1) to[out=-30, in=180] (v2) to[out=0, in=210] (v3) to[out=30, in=210] (v4); % Curve 2: Inner (v10 -> v7 -> v2 -> v6 -> v9) \draw (v10) to[out=30, in=210] (v7) to[out=30, in=180] (v2) to[out=0, in=150] (v6) to[out=-30, in=150] (v9); % Curve 3: Top (v8 -> v1 -> v3 -> v5) \draw (v8) to[out=45, in=210] (v1) to[out=30, in=150] (v3) to[out=-30, in=135] (v5); % Curve 4: Bottom (v8 -> v7 -> v6 -> v5) \draw (v8) to[out=-45, in=150] (v7) to[out=-30, in=210] (v6) to[out=30, in=225] (v5); % Curve 5: Left Bow (v0 -> v8 -> v10) \draw (v0) to[out=-60, in=90] (v8) to[out=-90, in=60] (v10); % Curve 6: Right Bow (v4 -> v5 -> v9) \draw (v4) to[out=-120, in=90] (v5) to[out=-90, in=120] (v9); % 3. Hollow Nodes \node[vertex, label=left:$v_0$] at (v0) {}; \node[vertex, label=above:$v_1$] at (v1) {}; \node[vertex, label=above:$v_2$] at (v2) {}; \node[vertex, label=above:$v_3$] at (v3) {}; \node[vertex, label=right:$v_4$] at (v4) {}; \node[vertex, label=right:$v_5$] at (v5) {}; \node[vertex, label=below:$v_6$] at (v6) {}; \node[vertex, label=below:$v_7$] at (v7) {}; \node[vertex, label=left:$v_8$] at (v8) {}; \node[vertex, label=right:$v_9$] at (v9) {}; \node[vertex, label=left:$v_{10}$] at (v10) {}; \end{tikzpicture} \end{center} \end{document}

I have to use \middle| to create vertical bar as follows \documentclass[12pt]{book} \usepackage{amsmath} \usepackage{array} \usepackage{xcolor} \begin{document} \[ \left[ \begin{array}{cc} 3i&-3\\ 3&3i \end{array} \middle| \begin{array}{c} 0\\ 0 \end{array} \right] \] \end{document} Compiles to I just need to make the vertical bar red. Tried things such as \middle\color{red}| and \middle\textcolor{red}{|} but these produce Missing delimiter errors. the reason I need \middle| rather than the simpler cc|c is HTML conversion issue. In ordinary LaTeX, cc|c is preferable, but \middle| is currently only workaround that compiled and generates correct vertical bar in HTML. I just like to make the color red if possible, using the same above code, to make the bar more clear. There will only be one vertical bar. But number of rows and columns can change. No tikz solutions please. TL 2026

I’m trying to do exactly the same as in Hiding sections, but keep references, especially running the MWE from https://tex.stackexchange.com/a/683261/56823 but with the scrartcl KOMA class instead of the standard article one: \documentclass[a4paper]{scrartcl} \usepackage{environ} \NewEnviron{myhideenv}{% \setbox0\vbox{% \let\xxwrite\write \protected\def\write{\immediate\xxwrite}% {\tiny XX\BODY XX}} } \begin{document} The start of the report. \begin{myhideenv} \section{Testsection not printed} \label{testsection} Test not printed \end{myhideenv} Section reference is still correct: \ref{testsection} \section{This is section two} It is still correct when myhideenv is hidden. The end of the report. \end{document} It used to work up until TeX Live 2024, but not anymore (currently running up-to-date TeX Live 2026). Compiling with lualatex (which I use) gives: ! Incomplete \iffalse; all text was ignored after line 19. <inserted text> \fi l.19 \end{myhideenv} And with pdflatex: ! Emergency stop. <inserted text> }\endwrite l.19 \end{myhideenv}

I would like to create a document command, say \marginaliagraphic, that: inserts a graphic (using \includegraphics) into the marginal note (using \marginalia from the marginalia package), allows the user to continue specifying the parameters of \marginalia and \includegraphics using key values, for example, like this: \marginaliagraphic[ , marginaliaset = { pos=left, valign=b } , graphicset = { width=.5\linewidth, angle=90 } ]{example-image} The following attempt fails, likely due to an expansion issue: \documentclass{article} \usepackage{marginalia} \usepackage{graphicx} \ExplSyntaxOn \keys_define:nn { mymodule } { , marginaliaset .tl_gset:N = \g__mymodule_marginalia_set_tl , graphicset .tl_gset:N = \g__mymodule_graphic_set_tl } \cs_new_protected:Npn \__mymodule_marginalia_graphic:nn #1 #2 { \keys_set:nn { mymodule } { #1 } \marginalia[\g__mymodule_marginalia_set_tl] { \includegraphics[\g__mymodule_graphic_set_tl]{#2} } } \NewDocumentCommand \marginaliagraphic { O{} m } { \__mymodule_marginalia_graphic:nn {#1} {#2} } \ExplSyntaxOff \begin{document} \marginaliagraphic[ , marginaliaset = { pos=left, valign=b } , graphicset = { width=.5\linewidth, angle=90 } ]{example-image} \end{document} How could I make something like this work?

The post is the follow-up of this link, what I want is to add similar tags as below: \documentclass{article} \usepackage{bigdelim} \usepackage{amsmath} \begin{document} \[ \arraycolsep=2pt \begin{array}{r@{}rrrrr} \ldelim\{{2}{*} & x & + & 3y & = & 11 \tag{1}\\ & 2x & - & y & = & -9 \tag{2}\\[2pt] \ldelim\{{2.7}{*}[result ] & x & & & = & x_1 \tag{1'}\\ & & &\dfrac23 y & = & y_1 \tag{2'} \end{array} \] \end{document} For specific alignment requirement, I found the "syntax preference" with array and bigdelim package. However, we could not use \tags: ! Package amsmath Error: Multiple \tag. See the amsmath package documentation for explanation. Type H <return> for immediate help. ... l.10 ... & 2x & - & y & = & -9 \tag{2} \\[2pt] ? The solution for example this with empheq are hard to achieve multiple alignment points. How could I do that? Edit I have also tried the cases version with Werner's answer, if I switch cases to numcases environment provide by cases package, it can't be nested with matht environment: % Source - https://tex.stackexchange.com/a/765671 % Posted by Werner % Retrieved 2026-08-22, License - CC BY-SA 4.0 \documentclass{article} \usepackage{mathtools} \usepackage{cases} \begin{document} \begin{numcases}{\text{result~}} \phantom{2}x + 3y = \phantom{-9}\mathllap{11} \tag{1'} \\ 2x - \phantom{3}y = -9 \tag{2'} \end{numcases} Here is some text before: \begin{align} & \begin{numcases}{\phantom{\text{result~}}} \phantom{2}x + 3y = \phantom{-9}\mathllap{11} \\ 2x - \phantom{3}y = -9 \end{numcases} \\ \intertext{with some text inbetween the two, just because} & \begin{numcases}{\text{result~}} \phantom{2}x \phantom{{} + 3y} = \phantom{-9}\mathllap{x_1} \\ \phantom{2x + 3}\mathllap{\dfrac{2}{3}}y = \phantom{-9}\mathllap{y_1} \end{numcases} \end{align} and then some closing text at the end. \end{document} gives: ! Missing \endgroup inserted. <inserted text> \endgroup l.29 \end{align} ? Then I found the similar answer, but I still find it hard to apply it to this case...

I'm using LuaLaTeX and fontsetup to write a mathematical text about complex numbers. In my text I want to use "Re" and "Im" to denote the real and imaginary parts of a complex number, respectively, instead of the curly single letters R and I of plain-TeX. I use the following to re-define the \Re and \Im macros: \documentclass{standalone} \usepackage{fontsetup} \renewcommand{\Re}{\operatorname{Re}} \renewcommand{\Im}{\operatorname{Im}} \begin{document} $x=\Re(z)$, $y=\Im(z)$ \end{document} However, the curly single letters still appear in the output: . Note 1: When I comment out \usepackage{fontsetup} and use \usepackage{amsmath} and replace \renewcommand by \newcommand, the two-letter forms "Re" and "Im" are used. Note 2: The same issue appears when using the physics package: It re-defines \Re and \Im to \operatorname{Re} and \operatorname{Im} respectively. However, the single letter form still appears when using LuaLaTeX and fontspec. (I noticed this issue, because I'm using the physics package.) My question is: How can I overwrite the \Re and \Im macros to show the two-letter form "Re" and "Im" when using LuaLaTeX and fontspec? (I'd like to avoid creating new macros, because the files I'm writing are part of a larger project, which uses \Re and \Im all over the place and I want to be consistent.)

I want to create a custom character map. I've already created one that works with Xelatex, but I can't work with it in Lualatex. Is it possible to create a map that supports Lualatex? This mapping LHSName "A-m-n" RHSName "UNICODE" Define a U+0061 ;a Define b U+0062 ;b Define c U+0063 ;c Define d U+0064 ;d Define e U+0065 ;e Define f U+0066 ;f Define g U+0067 ;g Define h U+0068 ;h Define i U+0069 ;i Define j U+006A ;j Define k U+006B ;k Define l U+006C ;l Define m U+006D ;m Define n U+006E ;n Define o U+006F ;o Define p U+0070 ;p Define q U+0071 ;q Define r U+0072 ;r Define s U+0073 ;s Define t U+0074 ;t Define u U+0075 ;u Define v U+0076 ;v Define w U+0077 ;w Define x U+0078 ;x Define y U+0079 ;y Define z U+007A ;z Define A U+0041 ;A Define B U+0042 ;B Define E U+0045 ;E Define G U+0047 ;G Define I U+0049 ;I Define N U+004E ;N Define O U+004F ;O Define S U+0053 ;S Define T U+0054 ;T Define U U+0055 ;U Define W U+0057 ;W Define Y U+0059 ;Y Define C U+005E ;^ << CARET Define UL U+005F ;_ << UNDERLINE Define P U+002E ;. << DOT Define V U+002C ;, << COMMA (_V_irgule) Define CO U+003A ;: << COLON Define SC U+003B ;; << SEMICOLON Define Ain U+0060 ;` Define F U+0046 ; F Define H U+0048 ;H << HAMZA Define Q U+0022 ;" << QUOTE Define Z U+002D ;Z << HYPHEN Define BAR U+007C ;| Define AN U+0061 U+004E ; aN Define LLAH U+006C U+006C U+005F U+0061 U+0068 ; ll_ah ;Define NUL U+00A6; ;;Define Ha U+0623 ;;Define Hi U+0625 ;;Define Hy U+0626 ;;Define Hw U+0624 ;;Define Hh U+06C0 ;; = U+0647 U+0654 ;;Define HA U+0622 ;;Define HB U+0640 U+0654 ;;Define HBAR U+0621 ; '| pass(Unicode) U+E000 > ; eliminate special code for capitalization in transliterations pass(Unicode) Class [VWL] = (U+0061 U+0065 U+0069 U+006F U+0075 ) ;(a e i o u) Class [AVWL] = (U+064B..U+0650); Class [LTR] = (U+0061..U+007A U+0041 U+0045 U+0047 U+0049 U+004F U+0055 U+0042 U+004E U+0054 U+0059 U+005E U+005F U+0022 U+0027 U+0060) ;a..z A E I O U B N T Y ^ _ " "" ` Class [BRACKETS] = (U+003C U+003E U+00AB U+00BB U+0028 U+0029 U+005B U+005D U+2018 U+2019 U+201C U+201D); < > () « » [ ] ‘ ’ “ ” Class [PUNCT] = (V SC P CO) Class [Iy] = (U+0049 U+0079) ;(I y) Class [Uw] = (U+0055 U+0077) ;(U w) Class [Uwu] = (U+0055 U+0077 U+0075) ;(U w u) ;Class [ae] = (U+0061 U+0065) ;(a e) ;Class [ou] = (U+0075 U+006F) ;(u o) Class [Iyi] = (U+0069 U+0079 U+0049) Class [UI] = (U+0049 U+0055) ; U I Class [Digits] = (U+0030..U+0039) Define BEG (#|Z|[BRACKETS]) Define END (#|[BRACKETS]|[PUNCT] U+0020|[PUNCT] #) Define ENDZ (#|[BRACKETS]|[PUNCT] U+0020|[PUNCT] #|Z) pass(Unicode) Class [Digits] = (U+0030..U+0039) Class [ArDigits] = (U+0660..U+0669) Class [ArEasternDigits] = (U+06F0..U+06F9) Class [VWL] = (U+0061 U+0065 U+0069 U+006F U+0075 ) ;(a e i o u) Class [LTR] = (U+0061..U+007A U+0041 U+0045 U+0049 U+004F U+0055 U+0042 U+004E U+0054 U+0059 U+005E U+002E U+005F U+0022 U+0027 U+0060) ;(a..z A E I O U B N T Y ^ . _ " "" `) e > U+0621 a > U+0627 b > U+0628 c > U+FE9F t > U+062A C t > U+062B UL (t|s) > U+062B j > U+062C H > U+062D C H > U+062E d > U+062F C d > U+0630 r > U+0631 C r > U+0632 s > U+0633 C s > U+0634 S > U+0635 C S > U+0636 T > U+0637 C T > U+0638 A > U+0639 C A > U+063A f > U+0641 q > U+0642 k > U+0643 l > U+0644 m > U+0645 n > U+0646 h > U+0647 w > U+0648 y > U+064A F > U+064E I need to write the letters as follows: (ا) --> a (ب) --> b (ت) --> t (ث) --> ^t ... A problem arises when I know that the letter ث --> {^t}

Here below is what I want: the image above was generated by tabularray: \documentclass{article} \usepackage{showframe} \usepackage{tabularray} \UseTblrLibrary{tikz} \usetikzlibrary{decorations.pathreplacing} \usetikzlibrary{calligraphy} \usepackage{amsmath} \begin{document} \[ \begin{tblrtikzabove} \draw[decorate,decoration={calligraphic brace,mirror, amplitude=1.5mm},thick] ([yshift=-2pt]h1-|v2) -- ([yshift=+2pt]h3-|v2); \draw[decorate,decoration={calligraphic brace,mirror, amplitude=1.5mm},thick] ([yshift=-2pt]h3-|v2) -- ([yshift=+2pt]h5-|v2); \end{tblrtikzabove} \begin{tblr}{ % hlines, vlines, colspec = {r*{5}{r}}, columns = {rightsep=2pt, leftsep=2pt}, cell{1,3}{1} = {r = 2, c = 1}{m}, } & x & + & 3y & = & 11 \\ & 2x & - & y & = & -9 \\ \text{result\;\;} & x & & & = & x_1 \\ & & & \dfrac{2}{3}y & = & y_1 \end{tblr} \] \end{document} However, I was not sure whether the spacing was "correct" as amsmath's convention. In other word, I wonder whether there exist more "math"-like solution. Here below is my code with IEEEeqnarray, but, I found it hard to handle \{: % https://tex.stackexchange.com/a/147822 % https://tex.stackexchange.com/a/149396 \documentclass{article} \usepackage{showframe} \usepackage{amsmath} \usepackage{ieeetrantools} \begin{document} \begin{IEEEeqnarray*}{urCrCr} & x &+& 3y & = & 11 \\ & 2x &-& y & = & -9 \\ result & x & & & = & x_1 \\ result & & & \dfrac{2}{3}y & = & y_1 \end{IEEEeqnarray*} \end{document} Any suggestions about this?

In daily typing of mathematical work in latex, I am following the initial matter below: \documentclass[a4paper,12pt]{article} \usepackage[a4paper, total={6in, 8in}]{geometry} \usepackage{amssymb, amsfonts, amssymb, amsthm, amsmath} \begin{document} Hello Hello ..... Hello Hello ..... \end{document} I observed with above selection of document-type and size (6 by 8 inch): The word Hello can be typed 14 times. The line, containing 14 Hello words, can be typed a maximum of 40 times on one page. Question: How can I increase the size of fonts, for words as well as mathematical text throughout the document by simpler commands? Question: How can I put fewer than 14 instances of word Hello in a row? How can I reduce the number of lines to 30 or even less? Why am I doing it? This is because my class is narrow, and has 25 rows, and I can't show text in size of 12pt. I need to double it, to visualize to all audience. (Note: I am avoiding Beamer, since I can't show simpler proofs in one slide.) And, I am distributing the material after the class, which is easily readable with respect to font size.

The macro \PointLabel is made to simplify creating label on a graph. \fill \PointLabel[above]{-2} \PointLabel[below]{-1} ; Here below is the full code: \documentclass[tikz,border=1cm,12pt]{standalone} \usepackage{amsmath} \usepackage{xintexpr} \newcommand\fx[1]{(#1)^2} \newcommand{\Rational}[1]{% \xintifboolexpr{\xinttheexpr (#1)<0\relax} {-\xintTeXFrac{\xinttheexpr reduce(-( #1 ))\relax}} {\xintTeXFrac{\xinttheexpr reduce(#1)\relax}} } \newcommand{\CoordLabel}[1]{$\left(\Rational{#1},\Rational{\fx{#1}}\right)$} \newcommand{\PointLabel}[2][]{(#2,{\fx{#2}}) circle (2pt) node[#1]{\CoordLabel{#2}}} \begin{document} \begin{tikzpicture}[scale=1.2] \draw[->] (-3.5,0)--(3.5,0) node[right] {$x$}; \draw[->] (0,-1)--(0,10) node[above] {$y$}; \draw[blue,thick,samples=20,domain=-3:3] plot(\x,{\fx{\x}}); \fill (0,{\fx{0}}) circle(2pt) node[below right,red]{\CoordLabel{0}} (1,{\fx{1}}) circle(2pt) node[right]{\CoordLabel{1}} (2,{\fx{2}}) circle(2pt) node[right]{\CoordLabel{2}} (2.5,{\fx{2.5}}) circle(2pt) node[right]{$y=f(x)$} ; % the following causes errors. \fill \PointLabel[above]{-2} \PointLabel[below]{-1} ; \end{tikzpicture} \end{document} However it produces errors: ! Package tikz Error: Giving up on this path. Did you forget a semicolon?. See the tikz package documentation for explanation. Type H <return> for immediate help. ... l.40 \PointLabel [above]{-2} ?

This post is the follow-up of my previous answer, preceeding to F.Pantigny's nicematrix new feature "false row" and "false column", here below is the simplified version: % Source - https://tex.stackexchange.com/a/763357 \documentclass{article} \usepackage{xcolor} \usepackage{tabularray} \setlength\lTblrDefaultHruleWidthDim{2pt}% \setlength\lTblrDefaultVruleWidthDim{2pt}% \begin{document} \begin{tblr}{ colspec={*{8}{c}}, stretch = 0, colsep = 0pt, rowsep = 0pt, rows = {ht=1cm,font=\Large}, columns = {wd=1cm}, row{2} = {ht=.15cm}, column{2} = {wd=.15cm}, hlines = {3-Z}{solid}, hline{3-Z} = {1}{solid}, vline{3-Z} = {1}{solid}, vlines = {3-Z}{solid}, cells = { mode=math, halign=c }, cell{3}{3} = {magenta} } & & e & r & r^2 & f & fr^2 & fr \\ & & & & & & & \\ e & & e & r & r^2 & f & fr^2 & fr \\ r & & r & r^2 & e & fr^2 & fr & f \\ r^2 & & r^2 & e & r & fr & f & fr^2 \\ f & & f & fr & fr^2 & e & r^2 & r \\ fr^2& & fr^2 & f & fr & r & e & r^2 \\ fr & & fr & fr^2 & f & r^2 & r & e \end{tblr} \end{document} It looks good, but the code was not so elegant since I have commented here: Consider the "e" which was colored magenta, semantically, it would be cell{2}{2}, but in my code, that was cell{3}{3}, which is not so friendly for further modification The "fake row/column" distance was not easy to control. In my code, that is row{2} = {ht=.15cm} and column{2} = {wd=.15cm}, together with colspec={*{8}{c}},stretch = 0,colsep = 0pt,rowsep = 0pt In a word, I found my code was existing rooms to refine, maybe introduce similar "fake row/column" feature. Any suggestion on this?

Although I've created a basic fan shape in TikZ, how do I make the center blade of the TikZ fan dynamic rotate? the value you enter determines exactly how fast the TikZ fan I created will spin. \documentclass{article} \usepackage{tikz} \usepackage[paperwidth=9cm, paperheight=9cm, margin=1.5cm]{geometry} \begin{document} \pagestyle{empty} \begin{figure}[htbp] \begin{tikzpicture} \filldraw[color=yellow!60, fill=orange!40, very thick](0,0) circle (3); \filldraw[color=yellow!60, fill=red!0, very thick](0,0) circle (2.5); \begin{scope}[rotate=0] \draw [line width=0.3cm] (0,0) -- (2,2); \draw [line width=0.3cm] (0,0) -- (0,3); \draw [line width=0.3cm] (0,0) -- (-2,2); \draw [line width=0.3cm] (0,0) -- (2,-2); \draw [line width=0.3cm] (0,0) -- (3,0); \draw [line width=0.3cm] (0,0) -- (-3,0); \draw [line width=0.3cm] (0,0) -- (0,-3); \draw [line width=0.3cm] (0,0) -- (-2,-2); \filldraw[orange] (0,0) circle (30pt) node[anchor=west]{}; \end{scope} \end{tikzpicture} \end{figure} \end{document}