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1

The soulutf8 package is an extension of soul that works with the utf-8 encoding mechanism used by pdflatex. \documentclass[12pt, a4paper, landscape]{article} \usepackage[utf8]{vietnam} \usepackage{titling} \usepackage[left=3cm, top=2.5cm, bottom=2cm, right=2cm]{geometry} \usepackage{multicol} \usepackage{enumitem} \usepackage{color,soulutf8} \begin{document}...


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texindy does not accept a non-alphabetical character as a sorting key, so you have to provide the sorting key as in: \index{alpha@$\alpha$} if you are writing in English and \index{alfa@$\alpha$} if you are wrting in Portuguese.


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Find a font on your system that has the glyph. \documentclass{article} \usepackage{fontspec} \usepackage{newunicodechar} % use a font that has U+3012; ipag.ttf is in TeX Live \newfontface{\postalmarkfont}{ipag.ttf} \newunicodechar{〒}{{\normalfont\postalmarkfont 〒}} \begin{document} This is the postal mark 〒 \end{document} Here's a “more generic” way, ...


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For XeLaTeX and LuaLaTeX, many mathematical characters are defined in the unicode-math package % !TeX encoding = UTF8 % !TeX program = lualatex \documentclass{standalone} \RequirePackage{unicode-math} \begin{document} $∀∃ℝ∈𝔻⟹$ \end{document}


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With lualatex or xelatex you just need a font that has the characters. Noto Sans Ogham is installed at Overleaf and not surprisingly covers the Ogham block: The document is \documentclass{article} \title{Ogham} \usepackage{fontspec} \newfontfamily\og{Noto Sans Ogham} \date{September 2021} \begin{document} \maketitle \tracinglostchars=2 \section{...


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The argument of \symbol expects TeX's number syntax. Normally numbers should be given in decimal, but hexadecimal numbers can be used too by adding a " in front of them. In this case, TeX requires them to be given in uppercase. So you need e.g. \symbol{"F1F9} instead of \symbol{f1f9}.


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In your comment you stated that you installed TeXLive (TL) via the Ubuntu repositories. However you are using Ubunto 18.04, which ships only TL2017 in its repositories (see https://packages.ubuntu.com/bionic/texlive). Therefore by executing sudo apt-get install texlive-full you are installing TL2017 and not TL2020. If you want to install a more recent ...


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