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I am using a formula where I have to use $\boldsumbol l$. However on the slide, it looks like the letter capital I. How can I have a nice curvy version to denote vector l?

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    Not a duplicate. I checked those sites and they did not give me a concrete answer. Bernard has done the job for me.
    – Guna
    Jun 4, 2015 at 9:28
  • Other options you have: 1. In the modern toolchain with unicode-math, load a math font that comes with a bold version (XITS, Libertinus or Minion). 2: In unicode-math, load a bold math font with \setmathfont[version=bold]. 3: In the legacy toolchain, load the bm package after amsmath/mathtools.
    – Davislor
    Feb 22, 2019 at 12:25

1 Answer 1

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Like that?

\documentclass[12pt]{standalone}
\usepackage[utf8]{inputenc}
\usepackage{mathtools}

\begin{document}

  $ \ell ~ \boldsymbol\ell $

\end{document}

Normal curly l and a bold curly l

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