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I am usig two different systems to write my presentation. on linux I use texmaker and everything works fine. But when I move to mac and use texshop I encounter the above error in the following part:

where $V \in \mathbb{R}_\textbf{+}^{m \times n}$ ,$W \in \mathbb{R}_\textbf{+}^{m \times k}$, $H \in \mathbb{R}_\textbf{+}^{k \times n}$ and $k <<min\{m,n\}$.

minimal example:

\documentclass{beamer}

% \usepackage{beamerthemesplit} // Activate for custom appearance

\title{Example }
\date{\today}

\begin{document}

\begin{frame}
\frametitle{Non-negative Matrix Factorization}

where $V \in \mathbb{R}_\textbf{+}^{m \times n}$ ,$W \in \mathbb{R}_\textbf{+}^{m \times k}$, $H \in \mathbb{R}_\textbf{+}^{k \times n}$ and $k <<min\{m,n\}$.
\end{frame}
\end{document}

The way to fix it is to change _\textbf{+} to simple _+. the only related problem I could find was this post, but it didn't help

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Moj
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  • don't use _\textbf{+} that is unreliable, try _{\textbf{+}}, I'd use \bm from the bm package instead of \textbf – daleif Sep 11 '14 at 08:08
  • Plus, always, always provide a compilable minimal example such that others can try it out without having to guess what your preamble looks like. – daleif Sep 11 '14 at 08:09
  • @daleif I added the example.I tried us bmbut it gives the same error. _{\textbf{+}} worked,thanks . why it is unreliable? – Moj Sep 11 '14 at 08:31
  • @daleif oh got it. it should be _{\bm{+}} – Moj Sep 11 '14 at 08:34
  • @LaRiFaRi thanks for the link but it was not directly related to my question – Moj Sep 11 '14 at 08:34

0 Answers0