Week

I have this my image in Adobe Illustrator. How can I simulate a coarse-grained concrete surface with the libraries? \documentclass{article} \usepackage{tikz} \usetikzlibrary{patterns} \begin{document} \begin{tikzpicture}[scale=1] \draw[->,thick] (-3.2,-1.65)--(4.3,-1.65) node[below right] {$x$}; % ground \fill[pattern=north east lines,pattern color=gray] (-3.2,-1.9) rectangle (4,-1.65); \end{tikzpicture} \end{document}

I have the following MWE: \documentclass[]{article} \usepackage{fontspec} \usepackage{unicode-math} \usepackage[colorlinks=false,linktocpage=true]{hyperref} \usepackage{cleveref} \begin{document} \begin{figure}[htbp] \centering \caption{Here is a caption} \label{thelabel} \end{figure} \end{document} and in the PDF, below the caption is printed "helabel", centered and in the same font family. If I disable either cleveref or unicode-math, the problem disappears (though it seems to come back with certain packages, such as \usepackage{mhchem}) I'm using ubuntu, texlive 2025 and VScode with the Latex Workshop extension. Thank you for your help

I would like to draw a TikZ line with an east anchored node at its starting point, such that both the line and the node globally having a given width. For example, in the following MCE example, how can I programmatically set the length \mywidth so that the line and the “Foo” node have a combined length of 50 mm? \documentclass{article} \usepackage{tikz} \usepackage[showframe,type=alledgesT]{fgruler} \newlength\mywidth \setlength\mywidth{40mm} \begin{document} \noindent% \tikz \draw (0,0) node[anchor=east,draw] {Foo} -- (\mywidth,0); \end{document}

I defined a function \__foo:w #1+#2+#3, like the MWE below \documentclass{article} \begin{document} \ExplSyntaxOn \cs_new:Npn \__foo:w #1 + #2 + #3 \q_stop { \textbf{#1},~ \textit{#2} \tl_if_blank:eF {#3} { ,~ \texttt{#3} } } \__foo:w tex + live + 2026 \q_stop % \__foo:w tex+live \q_stop \ExplSyntaxOff \end{document} But if users use \foo:w tex+live, due to the second delimiter + could not be founded, then error arises: File ended while scanning use of \foo:w <inserted text> Certainly, I know I can use l3seq, but I think it is not an elegant way. Is there a way to allow the usage \__foo:w tex+live \q_stop? Note \textbf, \textit, \texttt are just for demoing; in fact, I will use other personal defined functions.

Objectives: remove top left cell all contents are vertically and horizontally centered well balanced padding in each cell make it relatively much more beautiful \documentclass[12pt,border=12pt]{standalone} \usepackage{amsmath,array,tikz} \usetikzlibrary{math} \newcommand{\graph}[2][]{ \begin{tikzpicture}[baseline=(current bounding box.center)] \draw[blue,thick,->] (-1.5,#2)--(1.5,#2) node[right]{$x$}; \draw[red,thick,domain=-1.5:1.5,samples=100] plot(\x,{#1\x*\x/2}); \end{tikzpicture} } \renewcommand{\arraystretch}{1.8} \setlength{\tabcolsep}{18pt} \begin{document} \begin{tabular}{| >{\centering\arraybackslash}m{2.2cm}| >{\centering\arraybackslash}m{5.2cm}| >{\centering\arraybackslash}m{5.2cm}|} \cline{2-3} & $\mathbf{a>0}$ & $\mathbf{a<0}$ \\ \hline $\mathbf{D<0}$ & \graph{-1/2} & \graph[-]{1/2} \\ \hline $\mathbf{D=0}$ & \graph{0} & \graph[-]{0} \\ \hline $\mathbf{D>0}$ & \graph{1/2} & \graph[-]{-1/2} \\ \hline \end{tabular} \end{document} Any improvements are always welcome!

I found that "itemize" works inside "longtblr" when it is wrapped with a "minipage": \usepackage [ a4paper, left = 0.2cm, right = 0.2cm, top = 0.1cm, bottom = 0.2cm, ] {geometry} \usepackage{tabularray} \usepackage{lipsum} \newcommand{\rowgap}{10pt} \begin{document} \begin{center} \DefTblrTemplate{firsthead, middlehead,lasthead}{default}{} \begin{longtblr}[presep=-4pt,postsep=0pt] {colspec = {p{3.2cm}X},width=\textwidth,colsep=0pt,rowsep=0pt} 1 December 1871 & Some intro text:\\ & \lipsum[1-3] \\[\rowgap] 15 June 2016 & Some text:\\ & \begin{minipage}[t]{\linewidth} \begin{itemize} \item \lipsum[7] \item \lipsum[8] \item \lipsum[9] \end{itemize} \end{minipage} \\[\rowgap] 30 March 2051 & Other intro text:\\ & Hello man! \\[\rowgap] \end{longtblr} \end{center} \end{document} That code produces the following output: However, if one of the "itemize" entries is made longer, for example, \item \lipsum[7] \item \lipsum[8] \item \lipsum[9-11] the "minipage" prevents the "itemize" environment from breaking across pages. As a result, the entire list is moved to the second page instead of being split between the first and second pages, producing the following output: My question: inside a "longtblr", how can I split an "itemize" list — wrapped in a "minipage" — across pages? Should I wrap my "itemize" list in a different environment that allows it to split across pages? If so, which one? Are there any other solutions for using "itemize" inside "longtblr"? EDIT (9 July 2026): Thanks, everyone, for your comments! I realize I didn't explain why I chose to use a table here. My intention is to take advantage of some features that — to my understanding — are specific to the table environment. For example, the ability to highlight particular rows and columns by applying different colors: \documentclass[11pt,english]{article} \usepackage [ a4paper, left = 0.2cm, right = 0.2cm, top = 0.1cm, bottom = 0.2cm, ] {geometry} \usepackage{tabularray} \usepackage{lipsum} \newcommand{\rowgap}{10pt} \usepackage{xcolor} \definecolor{MyColor1}{rgb}{0.22,0.45,0.70} % light blue \definecolor{MyColor2}{rgb}{0.55,0.75,0.65} % mint green \begin{document} \begin{center} \DefTblrTemplate{firsthead, middlehead,lasthead}{default}{} \begin{longtblr}[presep=-4pt,postsep=0pt] {colspec = {p{3.2cm}X},width=\textwidth,colsep=0pt,rowsep=0pt} 1 December 1871 & Some intro text:\\ & \lipsum[1-3] \\[\rowgap] \SetRow{bg=MyColor1!20} 15 June 2016 & Some text:\\ & \begin{minipage}[t]{\linewidth} \begin{itemize} \item \lipsum[7] \item \lipsum[8] \item \lipsum[9] \end{itemize} \end{minipage} \\[\rowgap] \SetRow{bg=MyColor2!20} 30 March 2051 & Other intro text:\\ & Hello man! \\[\rowgap] \end{longtblr} \end{center} \end{document} Which gives this output: I was therefore wondering whether \begin{description} ... \end{description} can provide the same functionality. So far, I have not been able to find a way to reproduce this feature within the "description" environment.

I want to load luaotfload.sty with TeXInfo and here is my minimal code: \input texinfo @documentencoding UTF-8 @setfilename sample.info @settitle sample @include luaotfload.sty @bye If I use PDFTEX=luatex texi2pdf inn.texi, it produces the following: : Undefined control sequence. l.3 %% by Elie Roux <elie.roux@telecom -bretagne.eu> ? If I understand correctly, TeXInfo treats @ as a special character and turns the words following it into TeX control sequences, but the issue is that it should ignore TeX comments, which it is not. This could be a bug, but I thought I might have missed something very obvious.

I think in 2019 I built the following image with Adobe Illustrator for my book. Now, since there are so many images in pdf, I am slowly creating them in TikZ code. I wanted to know if there is something to create a trail for the blue particle similar to the main image or any other idea you have. Thank you. \documentclass{article} \usepackage{tikz} \usetikzlibrary{arrows.meta} \tikzset{rhtip/.tip={Triangle[line width=1pt, fill=white, length=9pt, width=9pt]}, pics/clock/.style args={#1/#2}{ code={ \def\dist{0.38} \draw[thin] (0,0) circle (\dist); \draw[line width=.7pt] (0,0) -- ({0.16*cos(90-30*#1-0.5*#2)}, {0.16*sin(90-30*#1-0.5*#2)}); \draw[line width=.7pt] (0,0) -- ({0.28*cos(90-6*#2)}, {0.28*sin(90-6*#2)}); } } } \begin{document} \begin{tikzpicture}[scale=.8] \draw[->] (0,0) -- (4.8,0) node[right] {$x$}; \draw[->] (0,0) -- (0,4.8) node[above] {$z$}; \draw[->] (0,0) -- (1.8,1.1) node[above] {$y$}; \node at (-0.4,4.3) {$\Sigma$}; \shade[ball color=cyan] (2.7,1.2) circle (0.2); \draw[brown!80!black,line width=2pt,-rhtip] (2.9,1.2)--(3.8,1.2) node[midway,above left] {$\mathbf{u}$}; \pic at (2.5,2.5) {clock={1/10}}; \node[blue!60!black] at (3.35,2.9) {$C(u)$}; \begin{scope}[shift={(5,1)}] \draw[->] (0,0)--(4.5,0) node[right] {$x'$}; \draw[->] (0,0)--(0,4.8) node[above] {$z'$}; \draw[->] (0,0)--(1.8,1.1) node[above] {$y'$}; \node at (-0.4,4.3) {$\Sigma'$}; \draw[magenta,line width=2pt,-rhtip] (0,3.6)--(1.8,3.6) node[midway,above] {$\mathbf{v}$}; \draw[green!60!black,line width=2pt,-rhtip] (2.1,1.3)--(3.7,1.3) node[midway,below] {$\mathbf{u}'$}; \pic at (2.5,2.5) {clock={2/20}}; \node[blue!60!black] at (3.55,2.9) {$C'(u')$}; \end{scope} \end{tikzpicture} \end{document}

This post is the follow-up of my previous question and jlab's answer, together with the comment: You can't use custom arrows with \hreac. It's why I redefined an existing one. Here below is the code to show "You can't use custom arrows with \hreac." % https://tex.stackexchange.com/a/764525 % https://tex.stackexchange.com/a/484655 \documentclass{article} \usepackage{chemfig} \ExplSyntaxOn \definearrow3{===}{% \CF_arrowshiftnodes{#3}% \path[allow ~ upside ~ down](\CF_arrowstartnode)--(\CF_arrowendnode)% node[pos=0,sloped,yshift=\CF_arrowdoublesep](\CF_arrowstartnode @u0){}% node[pos=0,sloped,yshift=-\CF_arrowdoublesep](\CF_arrowstartnode @d0){}% node[pos=1,sloped,yshift=\CF_arrowdoublesep](\CF_arrowstartnode @u1){}% node[pos=1,sloped,yshift=-\CF_arrowdoublesep](\CF_arrowstartnode @d1){};% \draw (\CF_arrowstartnode @u0)--(\CF_arrowstartnode @u1);% \draw (\CF_arrowstartnode @d1)--(\CF_arrowstartnode @d0);% \CF_arrowdisplaylabel{#1}{0.5}+\CF_arrowstartnode{#2}{0.5}-\CF_arrowendnode% } \ExplSyntaxOff \begin{document} \schemestart A\arrow{===}B \schemestop \hreac A >{===} B \endhreac \end{document} The custom arrow style === here, was allowed in \schemestart...\schemeend, but NOT within \hreac...\endhreac: \CF_error ...e {Package \CFname \space Error: #1.} l.28 >{===} ? Any suggestion on allowing === with \hreac? IMHO, === was common-seen with stoichiometric equation (see texdoc chemformula, sec 9. Arrows). If possible, if chemfig could provide more user-friendly interface to custom arrow, that would be better.

I am trying to create a two-column nomenclature section in LaTeX. My goal is to have the nomenclature entries fill the first column and then continue automatically in the second column on the same page (similar to the normal behavior of a two-column document). I am currently using the following code: \input{nomenclature} \begin{multicols}{2} \printnomenclature[0.06\textwidth] \end{multicols} The code successfully creates two columns, but the nomenclature only fills the first column. Instead of continuing to the second column on the same page, it starts a new page. I have attached an example showing the issue. Could anyone please suggest how to fix this problem or recommend a better approach? Thank you very much for your help. Here is one one of my example with the same problem: \documentclass[10pt,twocolumn,a4paper]{article} \usepackage{nomencl} \makenomenclature \usepackage{multicol} \begin{document} \title{Test} \author{} \date{} \maketitle % Problematic part \begin{multicols}{2} \printnomenclature[0.06\textwidth] \end{multicols} \nomenclature[Y]{AR}{Aspect Ratio} \nomenclature[Y]{EOC}{Extended Outlet Channel} \nomenclature[Y]{HEx}{Heat Exchanger} %Roman \nomenclature[A]{$a$}{Dimensionless thermal diffusivity} \nomenclature[A]{${A_{cr,d}}$}{As-designed cross-sectional area of channels in the HEx} \nomenclature[A]{${A_{s,d}}$}{As-designed surface area of the channels in the HEx} \nomenclature[A]{${A_{s,Iso,eff.}}$}{Isolation effective surface area} \nomenclature[A]{$A_j$}{Eigenfunction coefficient} \nomenclature[A]{Bi}{Biot number} \nomenclature[A]{$c_{p,m}$}{Specific heat capacity under constant pressure} \nomenclature[A]{$c_{s}$}{Mean adiabatic speed of sound} \nomenclature[A]{$D_h$}{Hydraulic diameter} % Greek \nomenclature[G]{$\alpha$}{mean heat transfer coefficient (Biot number calculations)} \nomenclature[G]{$\alpha_{CWHF}$}{mean heat transfer coefficient with the constant wall heat flux calculation methodology} \nomenclature[G]{$\alpha_{CWT}$}{mean heat transfer coefficient with the constant wall temperature calculation methodology} \nomenclature[G]{$\Delta p$}{pressure drop} \nomenclature[G]{$\Delta\xi$}{standard error of the arithmetic mean} \nomenclature[G]{$\zeta$}{measured quantity} \nomenclature[G]{$\Theta$}{Dimensionless temperature} \nomenclature[G]{$\theta$}{Alternative dimensionless temperature notation (if used)} \nomenclature[G]{$\lambda$}{mean heat conductivity (Biot number calculations)} \nomenclature[G]{$\lambda_m$}{mean heat conductivity} \nomenclature[G]{$\lambda_j$}{Eigenvalue (j-th mode)} \nomenclature[G]{$\mu_m$}{mean dynamic viscosity} \nomenclature[G]{$\Phi_j$}{Eigenfunction (j-th mode)} \nomenclature[G]{$\xi$}{arithmetic mean} \nomenclature[G]{$\rho$}{mean density} \nomenclature[G]{$\sigma$}{standard deviation} % Subscripts \nomenclature[L]{$0$}{Reference (2D thermally fully developed length calculations)} \nomenclature[L]{$avg.$}{Average} \nomenclature[L]{$b$}{Bulk} \nomenclature[L]{$con$}{Contraction} \nomenclature[L]{$expn$}{Expansion} \nomenclature[L]{$h$}{Hydraulic} \nomenclature[L]{$hyd$}{Hydrodynamic} \nomenclature[L]{$i$}{individual data point over time} \nomenclature[L]{$in$}{Inlet} \nomenclature[L]{$j$}{individual measurement position at one axial position} \nomenclature[L]{$m$}{Mean} \nomenclature[L]{$out$}{Outlet} \nomenclature[L]{$w$}{Wall} \nomenclature[L]{$\infty$}{Infinity} \end{document} I also created one additional TEX file to create nomenclature: TEXFile name(without .tex extension)= latexmkrc add_cus_dep('nlo', 'nls', 0, 'makenomenclature'); sub makenomenclature { system("makeindex -s nomencl.ist -o \"$_[0].nls\" \"$_[0].nlo\""); }

I want to replicate the following: Where (l) for liquid, and (g) for gas, now I have the following code: \documentclass{article} \usepackage[stixtwo]{fontsetup} \usepackage{chemfig} \usepackage{extarrows} \begin{document} \setchemfig{atom sep=1.5em} \hreac \chemfig{CO_2}(g) + \chemfig{[:210]O*3(--(-)-)}(g) % > ${}\xlongequal{\phantom{xxxx}}{}$ % not work with good baseline \chemfig{[:-90]O=*5(-O--(-)-O-)}(l) \endhreac \end{document}

I want to set the main text font to Arial using:\setmainfont{Arial} but I don't want the font used by \mathbf to be affected by Arial. I want \mathbf to keep the original default font. How can I achieve this? The following is my code: \documentclass{ctexart} \usepackage{amsmath,amssymb} \setmainfont{Arial} \begin{document} Hello world! with \verb|\setmainfont{Arial}| $\mathbf{N}_{+}$ \end{document} which gives: Noted that \mathbf also changed the N, which was not I was after, I want the Hello world! to be sans serif with Arial, while the \mathbf{N} gives the default bold N symbol with latinmodernmath.otf, the serif one as below:

This MWE \documentclass[12pt,oneside]{book} \usepackage{amsmath} \usepackage{array} \begin{document} \[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y'&=y^{{1}/{3}}\\ y \left (0\right )&=1\\ \end {array} \] \end{document} compiled with lualatex gives But using make4ht -ulm default -a debug B.tex "mathjax,htm" gives The raw html is <!DOCTYPE html> <html lang='en-US' xml:lang='en-US'> <head><title></title> <meta charset='utf-8' /> <meta content='TeX4ht (https://tug.org/tex4ht/)' name='generator' /> <meta content='width=device-width,initial-scale=1' name='viewport' /> <link href='B.css' rel='stylesheet' type='text/css' /> <meta content='B.tex' name='src' /> <script>window.MathJax = { tex: { tags: "ams", }, }; </script> <script async='async' id='MathJax-script' src='https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-chtml-full.js' type='text/javascript'></script> </head><body> <div class='mathjax-block'>\[ \begin {array}{&gt;{\displaystyle }r @{\;} &gt;{\displaystyle }l} y'&amp;=y^{{1}/{3}}\\ y \left (0\right )&amp;=1\\ \end {array} \]</div> </body> </html> Is there a way to fix the formatting in HTML so it is like the PDF (i.e. the spacings around the = is off in mathjax) ps. I know I can change the latex. But I have important reason for using \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} instead of say align or something else (too long to explain here, it depends on context I am using this latex code in). This is only a MWE to show the difference. So I do not want to change the latex code. ps. It should be possible to correct this using new mathjax configuration in my .cfg, but I am not sure how. I think I know of only one person who would know how to do this 🙂 Update Here is screen shot showing difference between fonts used by V 3.5 and V 4.0

I am trying to solve the same problem as the OP of this question, that is, set up some way to distinguish between equations and diagrams in a document and have it automatically be recognized by cleveref. The top answer there works beautifully... that is, as long as you don't load amsmath. If you do load it, then \cref will start referring to diagrams as equations again. For sake of self-containedness, here's an MWE based on that in the linked answer: \documentclass{article} \usepackage{tikz} \usetikzlibrary{cd} %\usepackage{amsmath} \usepackage{hyperref} \usepackage[noabbrev]{cleveref} \newcounter{diagram} \newenvironment{diagram}[1][]{% \begin{equation}% \begin{tikzcd}[#1]% \setcounter{diagram}{\value{equation}}% \addtocounter{diagram}{-1}% \refstepcounter{diagram}% }{% \end{tikzcd}% \end{equation}% } \crefname{diagram}{diagram}{diagrams} \creflabelformat{diagram}{(#2#1#3)} \begin{document} \begin{diagram}\label{diag:a} A \ar[r] & B \end{diagram} The above is \cref{diag:a}. \end{document} This produces the diagram together with "The above is diagram (1).", as desired. If you uncomment line 5, it instead produces the diagram with "The above is equation (1)." I'd be grateful for a solution with a similar use pattern that works in the presence of amsmath. In particular, I'd like to avoid the triple nesting \begin{diagram} \begin{equation} \begin{tikzcd} % ... \end{tikzcd} \end{equation} \end{diagram} that is common to the other answers at the linked question, if possible.

I'm trying to display three logos for the first slide of a presentation, that have various sizes and dimensions. I'm trying to align them vertically, but I do not manage to set the option of my tblr environment right. I found a silimar question on this forum, but the solution proposed (vertically center the last column only) is not working in my case. The example of this previous topic works well, but when I try to use it with my images, the other cells are no longer vertically centered but aligned at the bottom... Here is a MWE, I my beamer I use \includegraphics instead of the TikZ macros here, but the results is the same. \documentclass{article} \usepackage{tikz} \usepackage{tabularray} \newcommand{\logoA}{\tikz \draw [fill=red!50] (0,0) rectangle (2,1);} \newcommand{\logoB}{\tikz \draw [fill=blue!50!yellow] (0,0) rectangle (3,1);} \newcommand{\logoC}{\tikz \draw [fill=green!50] (0,0) circle (1.2cm);} \begin{document} \begin{tblr}{colspec = {Q[c,m]Q[c,m]Q[c,m]}} \hline \logoA & \logoB & \logoC \\ \hline % hline only for visualize the border of the table \end{tblr} \end{document}

I noticed that the \lastpagenumber is always one higher than the actual amount of pages (for example, showing 2 in a one page PDF instead of 1). It does not depend on the number of pages, I have seen this in one, two and three page PDFs. This is my MWE: \setuppagenumbering[location=,] \starttext Current: \pagenumber \\ Last: \lastpagenumber \stoptext This also applies to \totalnumberofpages, \lastpage. My version is 2026.02.19 11:49. Thanks in advance!

Is it possible to right align the left upper and lower indices that characterize atomic properties using \chemfig? Example: \chemfig{^{14}_6C} prints out the following: However, I would like to have the following: How to get it? EDIT: adding a MWE \documentclass[border=1mm]{standalone} \usepackage{chemfig} \begin{document} \chemfig{^{14}_6C} \end{document}

Here is what I want to do in LaTeX but in Python, data = [ ('path/to/file1', 'Caption for file1.', 'fig:label1'), ('path/to/file2', 'Caption for file2.', 'fig:label2'), ('path/to/file3', 'Caption for file3.', 'fig:label3'), ('path/to/file4', 'Caption for file4.', 'fig:label4') ] for entry in data: print( f'\\begin{{figure}}[htbp]\n\ \\centering\n\ \\includegraphics[width=0.8\\textwidth]{{{entry[0]}}}\n\ \\caption{{{entry[1]}}}\n\ \\label{{{entry[2]}}}\n\\end{{figure}}' ) This will result in the following text over the console, \begin{figure}[htbp] \centering \includegraphics[width=0.8\textwidth]{path/to/file1} \caption{Caption for file1.} \label{fig:label1} \end{figure} \begin{figure}[htbp] \centering \includegraphics[width=0.8\textwidth]{path/to/file2} \caption{Caption for file2.} \label{fig:label2} \end{figure} \begin{figure}[htbp] \centering \includegraphics[width=0.8\textwidth]{path/to/file3} \caption{Caption for file3.} \label{fig:label3} \end{figure} \begin{figure}[htbp] \centering \includegraphics[width=0.8\textwidth]{path/to/file4} \caption{Caption for file4.} \label{fig:label4} \end{figure} How do I do this but in LaTeX? I know how to run simple loops like shown here: https://www.dickimaw-books.com/latex/admin/html/docsvlist.shtml \newcommand*{\mylist}{Parrot,Canary,Zebra,Arara,Duck}% \makeatletter \@for\thisitem:=\mylist\do{\thisitem. } \makeatother However, I not sure how to run a loop over a list of lists and index the inner list.

What is the command to use in mtpro2 (here the v. lite https://ctan.org/pkg/mtp2lite) the heavy bold \mathsf{F}? Actually I not remembering this. I have tried with \boldsymbol, \boldmath but nothing. \documentclass{article} \usepackage{amsmath} \usepackage[lite]{mtpro2} \begin{document} $\mathsf{F}\mathbold{\mathsf{F}} \mbf{\mathsf{F}}$ \end{document} I can't use bm package because there is mtpro2. I have seen the pag. 6/7 of the documentation: https://tug.ctan.org/fonts/mtp2lite/texmf/doc/fonts/mtpro2/mtpro2.pdf.

\documentclass{beamer} \usepackage{tikz} \setbeamertemplate{navigation symbols}{} \begin{document} \begin{frame} \begin{itemize} \item why \item itemize \item move \item upwards \item in the second frame? \end{itemize} \end{frame} \begin{frame} \begin{itemize} \item why \item itemize \item move \item upwards \item in the second frame? \end{itemize} \begin{tikzpicture}[remember picture,overlay] \fill (current page.center) circle[radius=.5cm]; \end{tikzpicture} \end{frame} \end{document} tikzpictures with overlay should have no bounding box. Why in the second frame the same itemize of the first frame move upward?

I'm trying to customize item labels within an enumerate list on the fly, using the item options. However, I don't fully understand how it works. The code below produces unexpected results, and different patterns emerge for the first layer of the list and the second layer of the list. I'm trying to do this without using the enumitem package, if possible. I know how to manually edit the items, but want the counter to be more automated in the inner list. Here is a minimum working example: \documentclass{article} \begin{document} \begin{enumerate} \item[\theenumi.] Why is this 0, instead of 1? \begin{enumerate} \item[\theenumii.] Why is this blank? \item[\theenumii.] Why is this blank? \item[\theenumii.] Why is this blank? \end{enumerate} \item And this adds one to the counter \item And this adds one to the counter \end{enumerate} \begin{enumerate} \setcounter{enumi}{1} \item[\theenumi.] Now this is 1, as expected. \begin{enumerate} \setcounter{enumii}{1} \item[\theenumii.] And this is a, as expected. \item[\theenumii.] Why doesn't this add one to the counter? \item[\theenumii.] Why doesn't this add one to the counter? \end{enumerate} \item And why does this still add one to the counter? \item And why does this still add one to the counter? \end{enumerate} \end{document} Here's the output:

This question might be off-topic, but the reason I ask it here is that I want to eventually create a module for a LaTeX package to enable the use of conic gradients via PDF Type 6 shadings which are also known as Coons Patch Mash Tiling. Also, please do not read this as "fix my issue for me" question. Rather, I appreciate any pointers to where I could be wrong. I understand that this topic is highly specialised, so I don't expect anybody to actually fix it completely or even partially. Now, as far as I understand, such shadings are essentially encoded as object stream in a PDF with the following object structure as basis (of course the object number and the contents of the stream and its length are different in a real document): 1 0 obj << /ShadingType 6 /ColorSpace /DeviceRGB /BitsPerCoordinate 16 /BitsPerComponent 8 /BitsPerFlag 2 /Decode [ 0 100 0 100 0 1 0 1 0 1 ] /Length 0 >> stream 00... endstream The stream defines the patches. Each path can be thought of a (distorted) rectangle of which the four sides are described as cubic Bézier curves. Therefore, each of the four edges of the patch has four control points, which means that there are twelve such points needed to describe a patch. Also, each corner of the patch is assigned a color. Now, in a mesh, the patches are attached to each other so that they share a common edge. To identify the shared edge, a flag is added to each patch which describes which edge is shared. A 0 flag identifies the initial patch, a 1 flag means that the right edge of the previous patch is used as the left edge of the current patch. There are more flags, but we only need these two for this case. If edges are shared, the relevant control points and colors are omitted in the description of the patch in the stream. So, if we take the sizes as described by /BitsPerCoordinate, \BitsPerComponent and /BitsPerFlag (let us assume 16, 8, and 2 respectively, also let us assume RGB), we get the following binary representation of the a patch with flag 0: Flag: 2 bits Points: 12 points, 16 bits for the x coordinate, 16 bits for the y coordinate Colors: 4 colors, 8 bits for the red part, 8 bits for the green part, 8 bits for the blue part For a patch with flag 1, we get: Flag: 2 bits Points: 8 points, 16 bits for the x coordinate, 16 bits for the y coordinate Colors: 2 colors, 8 bits for the red part, 8 bits for the green part, 8 bits for the blue part Maybe I got something wrong here already, which might explain why things don't work. Anyways, my question is why the following does not result in the desired output. My idea for a conic shading was to create patches that look like slices of a pie. Like this: I first tried without the rounded edge and just set the control points to be equal to the relevant corner, hoping that this would result in a triangle-shaped rectangle. So my patches would adhere to the following logic: Patch 1: Flag = 0 Points: (50, 50) (50, 50) (100, 50) (100, 50) (100, 50) (50, 100) (50, 100) (50, 100) (50, 50) (50, 50) (50, 50) (50, 50) Colors: (255,0,0) (191,0,64) (191,0,64) (255,0,0) Patch 2: Flag = 1 Points: (50, 100) (0, 50) (0, 50) (0, 50) (50, 50) (50, 50) (50, 50) (50, 50) Colors: (128,0,128) (128,0,128) Patch 3: Flag = 1 Points: (0, 50) (50, 0) (50, 0) (50, 0) (50, 50) (50, 50) (50, 50) (50, 50) Colors: (64,0,191) (64,0,191) Patch 4: Flag = 1 Points (50, 0) (100, 50) (100, 50) (100, 50) (50, 50) (50, 50) (50, 50) (50, 50) Colors: (0,0,255) (0,0,255) But, the output is totally not what it should look like although I think that the stream is correct. Acrobat also complains about something being wrong. It looks like this: 21 0 obj << /ShadingType 6 /ColorSpace /DeviceRGB /BitsPerCoordinate 16 /BitsPerComponent 8 /BitsPerFlag 2 /Decode [ 0 100 0 100 0 1 0 1 0 1 ] /Length 350 >> stream 20002000200020003FFFE0003FFFE0003FFFE00020003FFFE0003FFFE0003FFFE00020002000200020002000200020003FC0002FC0102FC0103FC00018000FFFF00008000000080000000800080008000800080008000800080008000800080800080400020002000000020000000200000002000200020002000200020002000200010002FD0002FD80000000FFFF8000FFFF8000FFFF8000800080008000800080008000800080000000FF0000FF endstream endobj So, my question is: What am I missing? Where is the probably simple but basic problem? The following is an MWE intended for testing. It contains a few helper funcitons and the relevant functions from the package where the code eventually is supposed to be included. It should work with PDFLaTeX and LuaLaTeX: \DocumentMetadata{uncompress} \documentclass[]{article} \usepackage{l3draw} \ExplSyntaxOn % a few helper functions \cs_new:Npn \__hawkdraw_tuple_use_i:w ( #1 , #2 ) {#1} \cs_new:Npn \hawkdraw_tuple_use_i:n #1 { \fp_to_dim:n { \exp_last_unbraced:Ne \__hawkdraw_tuple_use_i:w { \fp_eval:n {#1} } } } \cs_new:Npn \__hawkdraw_tuple_use_ii:w ( #1 , #2 ) {#2} \cs_new:Npn \hawkdraw_tuple_use_ii:n #1 { \fp_to_dim:n { \exp_last_unbraced:Ne \__hawkdraw_tuple_use_ii:w { \fp_eval:n {#1} } } } \cs_new_protected:Npn \hawkdraw_support_pdfliteral:n #1 { \sys_if_engine_luatex:TF { \tex_pdfextension:D literal {#1} } { \tex_pdfliteral:D {#1} } } \cs_new_protected:Npn \hawkdraw_support_pdfxform:nnN #1#2#3 { \tex_immediate:D \tex_pdfxform:D \tl_if_empty:nF {#1} { attr {#1} } resources {#2} #3 } \cs_new_protected:Npn \hawkdraw_support_pdflastxform: { \tex_pdflastxform:D } \cs_new_protected:Npn \hawkdraw_support_pdfrefxform:N #1 { \tex_pdfrefxform:D \int_use:N #1 \scan_stop: } \cs_generate_variant:Nn \hawkdraw_support_pdfrefxform:N { c } % === % relevant code from the package \box_new:N \l__hawkdraw_shading_object_box \cs_new_protected:Npn \hawkdraw_shading_set:nnn #1#2#3 { \hbox_set_to_wd:Nnn \l__hawkdraw_shading_object_box { 100bp } { \vbox_to_ht:nn { 100bp } { \skip_vertical:n { 0pt plus 1fil } \hawkdraw_support_pdfliteral:n { /Sh ~ sh } } \skip_horizontal:n { 0pt plus 1fil } } \pdf_object_new:n { hawkdraw_shading_ #1 } \tl_if_empty:nTF {#3} { \pdf_object_write:nne { hawkdraw_shading_ #1 } { dict } { #2 } } { \pdf_object_write:nne { hawkdraw_shading_ #1 } { stream } { {#2} {#3} } } \hawkdraw_support_pdfxform:nnN { } { /Shading ~ << ~ /Sh ~ \pdf_object_ref:n { hawkdraw_shading_ #1 } ~ >> } \l__hawkdraw_shading_object_box \int_const:cn { c__hawkdraw_shading_ #1 _int } { \hawkdraw_support_pdflastxform: } } \cs_new_protected:Npn \hawkdraw_shading_use:n #1 { \hawkdraw_support_pdfrefxform:c { c__hawkdraw_shading_ #1 _int } } % === \cs_new:Npn \hawkdraw_convert_bin_to_hex:n #1 { \__hawkdraw_convert_bin_to_hex_aux:w #1 \q_stop } \cs_generate_variant:Nn \hawkdraw_convert_bin_to_hex:n { e } \cs_new:Npn \__hawkdraw_convert_bin_to_hex_aux:w #1 \q_stop { \int_compare:nNnF { \tl_count:n {#1} } < { 4 } { \__hawkdraw_convert_bin_to_hex_aux:NNNNw #1 \q_stop } } \cs_new:Npn \__hawkdraw_convert_bin_to_hex_aux:NNNNw #1#2#3#4#5 \q_stop { \int_format:nn { \int_from_bin:n {#1#2#3#4} } { 1X } \__hawkdraw_convert_bin_to_hex_aux:w #5 \q_stop } % === \cs_generate_variant:Nn \color_export:nnN { e } \cs_generate_variant:Nn \str_set_convert:Nnnn { Ne } \seq_new:N \l__hawkdraw_shading_conic_colors_seq \seq_new:N \l__hawkdraw_shading_conic_colors_bin_seq \cs_new_protected:Npn \hawkdraw_shading_conic_stream:N #1 { \tl_set:Ne #1 { \hawkdraw_convert_bin_to_hex:e { \seq_map_indexed_function:NN \l__hawkdraw_shading_conic_colors_bin_seq \__hawkdraw_shading_conic_stream_aux:nn } } } \cs_new:Npn \__hawkdraw_shading_conic_stream_aux:nn #1#2 { % skip first entry representing color at first edge \int_compare:nNnF {#1} = { 1 } { % flag (2 bit) \int_format:nn { \int_compare:nNnTF {#1} = { 2 } { 0 } { 1 } } { 0>2b } % four patches for each of the n colors % patch is pie segment going from 0 to 360 / ( n * 4 ) % points of first patch (12 points, 2 x 16 bits each \int_compare:nNnT {#1} = { 2 } { \prg_replicate:nn { 2 } { \__hawkdraw_shading_conic_stream_point_polar:nn { 0 } { 360 / ( \seq_count:N \l__hawkdraw_shading_conic_colors_bin_seq - 1 ) * ( #1 - 2 ) } } \prg_replicate:nn { 2 } { \__hawkdraw_shading_conic_stream_point_polar:nn { 1 } { 360 / ( \seq_count:N \l__hawkdraw_shading_conic_colors_bin_seq - 1 ) * ( #1 - 2 ) } } } \__hawkdraw_shading_conic_stream_point_polar:nn { 1 } { 360 / ( \seq_count:N \l__hawkdraw_shading_conic_colors_bin_seq - 1 ) * ( #1 - 2 ) } \prg_replicate:nn { 3 } { \__hawkdraw_shading_conic_stream_point_polar:nn { 1 } { 360 / ( \seq_count:N \l__hawkdraw_shading_conic_colors_bin_seq - 1 ) * ( #1 - 1 ) } } \prg_replicate:nn { 3 } { \__hawkdraw_shading_conic_stream_point_polar:nn { 0 } { 360 / ( \seq_count:N \l__hawkdraw_shading_conic_colors_bin_seq - 1 ) * ( #1 - 1 ) } } \__hawkdraw_shading_conic_stream_point_polar:nn { 0 } { 360 / ( \seq_count:N \l__hawkdraw_shading_conic_colors_bin_seq - 1 ) * ( #1 - 2 ) } % colors (4 colors, 3 x 8 bits each) \int_compare:nNnT {#1} = { 2 } { \seq_item:Nn \l__hawkdraw_shading_conic_colors_bin_seq { #1 - 1 } } #2 #2 \int_compare:nNnT {#1} = { 2 } { \seq_item:Nn \l__hawkdraw_shading_conic_colors_bin_seq { #1 - 1 } } } } \cs_new:Npn \__hawkdraw_shading_conic_stream_point_polar:nn #1#2 { % get from point polar % normalize to 65535 \int_format:nn { \fp_to_int:n { \hawkdraw_tuple_use_i:n { ( 50bp , 50bp ) + ( \draw_point_polar:nn { #1 * 50bp } {#2} ) } / 100bp * 65535 } } { 0>16b } \int_format:nn { \fp_to_int:n { \hawkdraw_tuple_use_ii:n { ( 50bp , 50bp ) + ( \draw_point_polar:nn { #1 * 50bp } {#2} ) } / 100bp * 65535 } } { 0>16b } } \cs_new_protected:Npn \__hawkdraw_shading_color_set_bin_value:n #1 { \seq_put_right:Ne \l__hawkdraw_shading_conic_colors_bin_seq { \int_format:nn { \int_from_hex:n {#1} } { 0>24b } } } \cs_generate_variant:Nn \__hawkdraw_shading_color_set_bin_value:n { V } % start , % start!25!mid , start!50!mid , start!75!mid , mid , % mid!25!end , mid!50!end , mid!75!end , end \cs_new_protected:Npn \hawkdraw_shading_color_set_bin_values:n #1 { \seq_clear:N \l__hawkdraw_shading_conic_colors_bin_seq \seq_set_from_clist:Nn \l__hawkdraw_shading_conic_colors_seq {#1} \seq_map_indexed_inline:Nn \l__hawkdraw_shading_conic_colors_seq { \int_compare:nNnTF {##1} = { 1 } { \color_export:enN { \seq_item:Nn \l__hawkdraw_shading_conic_colors_seq { 1 } } { HTML } \l__hawkdraw_shading_color_value_tmp_tl \__hawkdraw_shading_color_set_bin_value:V \l__hawkdraw_shading_color_value_tmp_tl } { \color_export:enN { \seq_item:Nn \l__hawkdraw_shading_conic_colors_seq { ##1 - 1 } ! 75 ! ##2 } { HTML } \l__hawkdraw_shading_color_value_tmp_tl \__hawkdraw_shading_color_set_bin_value:V \l__hawkdraw_shading_color_value_tmp_tl \color_export:enN { \seq_item:Nn \l__hawkdraw_shading_conic_colors_seq { ##1 - 1 } ! 50 ! ##2 } { HTML } \l__hawkdraw_shading_color_value_tmp_tl \__hawkdraw_shading_color_set_bin_value:V \l__hawkdraw_shading_color_value_tmp_tl \color_export:enN { \seq_item:Nn \l__hawkdraw_shading_conic_colors_seq { ##1 - 1 } ! 25 ! ##2 } { HTML } \l__hawkdraw_shading_color_value_tmp_tl \__hawkdraw_shading_color_set_bin_value:V \l__hawkdraw_shading_color_value_tmp_tl \color_export:enN { ##2 } { HTML } \l__hawkdraw_shading_color_value_tmp_tl \__hawkdraw_shading_color_set_bin_value:V \l__hawkdraw_shading_color_value_tmp_tl } } } \cs_new_protected:Npn \hawkdraw_shading_conic:n #1 { \int_if_exist:cF { c__hawkdraw_shading_ conic . #1 _int } { \hawkdraw_shading_color_set_bin_values:n {#1} \hawkdraw_shading_conic_stream:N \l_tmpa_tl \hawkdraw_shading_set:nnn { conic . #1 } { /ShadingType ~ 6 ~ /ColorSpace ~ /DeviceRGB ~ /BitsPerCoordinate ~ 16 ~ /BitsPerComponent ~ 8 ~ /BitsPerFlag ~ 2 ~ /Decode ~ [ ~ 0 ~ 100 ~ % x 0 ~ 100 ~ % y 0 ~ 1 ~ % R 0 ~ 1 ~ % G 0 ~ 1 ~ % B ] ~ } { \tl_use:N \l_tmpa_tl } } } \ExplSyntaxOff \begin{document} \ExplSyntaxOn \hawkdraw_shading_conic:n { red , blue } \hbox_set:Nn \l_tmpa_box { \hawkdraw_shading_use:n { conic.red,blue } } \box_use:N \l_tmpa_box \ExplSyntaxOff \end{document}

What package I have to use if I want to get French text in superscript? I want to write "57ème croche sur 92" with the term "ème" in superscript.

I use countwords to count the number of words in some LaTeX documents. The package counts words into a standard LaTeX counter. I then use totcount to display this wordcount at the beginning of the document. The number is generally in the thousands. Totcount provides a single macro \total{<counter>} for printing the eventual value of a counter, but it doesn't do any intelligent formatting, like dividing thousands with a comma/space (and fair enough -- very few situations call for counters in the thousands!). I would like to print the eventual value of the counter at the beginning of the document in a nicely formatted way. How can I do this? Based on other discussions of formatting counters, I have tried using numprint and siunitx, but neither of these work -- MWEs below. TIA! Failure #1 numprint \documentclass{article} \title{Foobar} % For counting words \usepackage{countwords} \newcounter{words} \setcounter{words}{0} % For printing final value \usepackage{totcount} \regtotcounter{words} % For dummy text \usepackage{lipsum} \usepackage{numprint} \begin{document} \maketitle % Prints `1112' (no comma) \total{words} % `Should' print `1,112', but gives an error. \numprint{\total{words}} \countwordsstart{words} \lipsum[1-12] \countwordsstop{words} \end{document} I get an error: ./test.tex:27: Package numprint Error: Invalid characters `\def ' in mandatory argument of (numprint) \numprint. Allowed are (numprint) `0123456789.,eEdD+-\pm '. Failure #2 siunitx \documentclass{article} \title{Foobar} % For counting words \usepackage{countwords} \newcounter{words} \setcounter{words}{0} % For printing final value \usepackage{totcount} \regtotcounter{words} % For dummy text \usepackage{lipsum} \usepackage{siunitx} \begin{document} \maketitle % Prints `1112' (no comma) \total{words} % `Should' print `1,112', but gives an error. \num[group-separator={,}]{\total{words}} \countwordsstart{words} \lipsum[1-12] \countwordsstop{words} \end{document} I get an error: ./test.tex:27: Package siunitx Error: Invalid number '\def \c@words@totc {\c@words@totc (siunitx) }1112'. I also looked at fmtcount but found it doesn't cover thousands separators.

I'm wondering why columns in tabular seem to not add space but \hline does. Is there a way to make it so that everything overlaps? \documentclass{article} \setlength{\parindent}{0pt} \setlength{\parskip}{0pt} \setlength{\tabcolsep}{0pt} \begin{document} Line\\ Line \vspace*{-2\baselineskip} \begin{tabular}{|l|} \hline Line\\ \hline Line\\ \hline \end{tabular}%\par\prevdepth=\dp\strutbox \vspace*{-2\baselineskip} Line\\ Line \end{document} EDIT: Thank you to all who answered. Using David Carlisle's comment, I now have the below: \documentclass{article} \setlength{\parindent}{0pt} \setlength{\parskip}{0pt} \setlength{\tabcolsep}{0pt} \setlength{\lineskip}{0pt} \begin{document} \def\newhline{% \noalign{\kern-.5\arrayrulewidth}\hline\noalign{\kern-.5\arrayrulewidth}% } Line\\ Line \vspace*{-2\baselineskip} \begin{tabular}[t]{|l|} \newhline % <- causing problems Line\\ \newhline Line\\ \newhline \end{tabular}\par\prevdepth=\dp\strutbox % for overlap \vspace*{-2\baselineskip} Line\\ Line \end{document} Seems the top \newhline prevents everything from lining up.

I want to draw the graph of z = x^2 + y^2, and I am using tikz for that. I used the following command: \begin{tikzpicture}[ x={(1cm,0cm)}, y={(-0.6cm,-0.35cm)}, z={(0cm,1cm)}, line join=round, line cap=round, scale=1, ] % Axes \draw[->] (0,0,0) -- (2,0,0); \draw[->] (0,0,0) -- (0,2.5,0); \draw[->] (0,0,0) -- (0,0,4); % Graph \draw[thick,smooth,variable=\t,domain=-1.8:1.8] plot ({\t},{0},{\t*\t}); % Circle that gives a 3d impression \draw[thick,smooth,variable=\t,domain=0:360] plot ({1.8*sin(\t)},{1.8*cos(\t)},{3.24}); \end{tikzpicture} However, the circle does not "fit" the graph: How can I adjust this?

I am aware for creating historical documents, the DVI format is still in use. And there is still tex4ht, as far as I know the only way to convert latex to HTML offered in TeXlive, but, apart from this, is there any use case for the DVI format? Maybe another package relying on it. I ask because i maintain a kind of build tool (very roughly comparable with latexmk) and ask myself on the details of supporting the dvi format.

I'm having trouble understanding Asymptote's (3.11) light rendering. When I run this code below: import three; size(8cm); currentprojection = orthographic((5,4,2), up=Y); currentlight = light(new pen[]{white}, new triple[]{(1,1,1)}); draw(unitcube, surfacepen=material(cyan)); real L = 2; draw(O--L*X, Arrow3); draw(O--L*Y, Arrow3); draw(O--L*Z, Arrow3); label("$x$", L*X, E); label("$y$", L*Y, N); label("$z$", L*Z, Z); I expected it to light up the whole cube (from my viewpoint; I understand the backside might not be lit). However, I instead got this: The left side of the cube is completely dark, which does not make sense considering the unit cube should essentially be lit with the placement of the light. However, changing the perspective to (5, 4, -2) yields this: The side that's pitch black here is the side that was initially lit in the first image. Considering there was no change to the light's position, I did not expect this to happen. I experimented with the emissive argument, however that is not what I wish to do. How does the lighting actually work in asymptote, and how do I fully illuminate all three sides of the cube, using the initial orthographic projection?

I've been working with google AI on this for 2 hrs. It can't figure a solution. One time it gave me 100 lines javascript code to fix this. Then it gave 50 lines .css code which made the date vanish. Here is MWE \documentclass[12pt]{article} \usepackage{latexml} \begin{document} \title{my book} \author{me} \date{\today} \maketitle \tableofcontents \section{first section} text \end{document} latexml always adds () around the date for some reason: How to tell it not to do that? commands used >latexml --dest=A.xml A.tex >latexmlpost --format=html5 --dest=A.htm A.xml

The following is my MWE: \documentclass{article} \usepackage{mathtools} % Loads amsmath and defines \shortintertext % Logarithms \DeclareMathOperator{\lb}{lb} \NewCommandCopy{\oldlog}{\log} \newcommand*{\implicitbaselog}{% Uncomment only one of the following lines \oldlog % Uncomment to set ambiguous logarithm as default % \lb % Uncomment to set binary logarithm as default % \lg % Uncomment to set common logarithm as default % \ln % Uncomment to set natural logarithm as default } \newcommand*{\useambiguouslog}{\renewcommand*{\implicitbaselog}{\oldlog}} \newcommand*{\usebinarylog}{\renewcommand*{\implicitbaselog}{\lb}} \newcommand*{\usecommonlog}{\renewcommand*{\implicitbaselog}{\lg}} \newcommand*{\usenaturallog}{\renewcommand*{\implicitbaselog}{\ln}} \RenewDocumentCommand{\log}{e{_}}{ \IfNoValueTF{#1}{\implicitbaselog}{\oldlog_{#1}} } \begin{document} \begin{alignat*}{4} \shortintertext{With default definition of \texttt{\textbackslash implicitbaselog}: } \log x &= \oldlog x, && && && \\ \shortintertext{after \texttt{\textbackslash usebinarylog}: } \usebinarylog \log x &= \lb x \; &&\text{ and } && \; \log_3 x &&= \oldlog_3 x, \\ \shortintertext{after \texttt{\textbackslash usecommonlog}: } \usecommonlog \log x &= \lg x \; &&\text{ and } && \; \log_4 x &&= \oldlog_4 x, \\ \shortintertext{after \texttt{\textbackslash usenaturallog}: } \usenaturallog \log x &= \ln x \; &&\text{ and } && \; \log_5 x &&= \oldlog_5 x, \\ \shortintertext{after \texttt{\textbackslash useambiguouslog}: } \useambiguouslog \log x &= \oldlog x \; &&\text{ and } && \; \log_6 x &&= \oldlog_6 x. \end{alignat*} \end{document} Essentially, I would like to simply use \useambiguouslog, \usebinarylog, \usecommonlog, and \usenaturallog to change how \log is typeset in the document whenever it is not followed by a subscript indicating a specific base. Is there a way to improve my solution? Thank you in advance.