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Just wondering if anyone knows why the symbols from the fontawesome package do not show up correctly here (in the underbrace). For example the Twitter logo works fine when not in the align part, but inside it does not work. I have tried using \text{\faTwitter} but this also does not work. Note that this is just a small section from a larger align stream of equations.

.enter image description here

\documentclass[12pt]{article}
    \usepackage{fontawesome}
    \usepackage{amsmath}
\begin{document}
\faTwitter

\begin{align*}
\text{(this)} &= E \cdot e^{-r(T-t)} \cdot \Phi'\left[d(S,t) - \sigma \sqrt{T-t}\right] \cdot \underbrace{\frac{\partial}{\partial \sigma} \Bigg[ d(S,t) - \sigma \sqrt{T-t} \Bigg]}_{\faTwitter}
\end{align*}
\end{document}
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  • Welcome to TeX.SX! You can have a look at our starter guide to familiarize yourself further with our format.
    – ebosi
    Apr 22, 2016 at 13:48
  • \text{\faTwitter} works (-;
    – ebosi
    Apr 22, 2016 at 13:49
  • Thank you @ebo I must have made a typo when trying this before Apr 22, 2016 at 13:52

1 Answer 1

5

You need to escape the math mode with \text{} to use fontawesome macros.

enter image description here

\documentclass{article}
    \usepackage{fontawesome}
    \usepackage{amsmath}
\begin{document}
    \faTwitter
    \begin{align*}
        \text{\faTwitter} &= E \cdot e^{-r(T-t)} \cdot \Phi'\left[d(S,t) - \sigma \sqrt{T-t}\right] \cdot \underbrace{\frac{\partial}{\partial \sigma} \Bigg[ d(S,t) - \sigma \sqrt{T-t} \Bigg]}_{\text{\faTwitter}}
    \end{align*}
\end{document}

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