Graphics, Figures & Tables ⇒ Error in figure caption

[mikkelDK]

Hi,

I have a problem with a symbol that I have defined when using it in figure captions (and captions of algorithms as well). It is a 180 degrees rotation of a curvearrowleft from amssymb. This minimal example generates the error:

Code: Select all

\documentclass[a4paper,11pt]{article}
\usepackage{amssymb}
\usepackage{rotating}

\newcommand{\arcTo}
{\begin{sideways}
  \begin{sideways}
    $\curvearrowleft$
  \end{sideways}
\end{sideways}}

\begin{document}

\begin{figure}
\caption{This is test a test $r_1\arcTo r_2$}
\end{figure}

\end{document}

The error is:

! Argument of \@caption has an extra }.
<inserted text>
\par
l.15 \caption{This is test a test $r_1\arcTo r_2$}

I've run across a `}' that doesn't seem to match anything.
For example, `\def\a#1{...}' and `\a}' would produce
this error. If you simply proceed now, the `\par' that
I've just inserted will cause me to report a runaway
argument that might be the root of the problem. But if
your `}' was spurious, just type `2' and it will go away.

I hope you can help me.

[CrazyHorse]

I have a problem with a symbol that I have defined when using it in figure captions (and captions of algorithms as well). It is a 180 degrees rotation of a curvearrowleft from amssymb. This minimal example generates the error:

I hope you can help me.

use ...\protect\arcTo ...

and there is also a \rotatebox{180}{...} instead of a doubled sideways.

Herbert

[mikkelDK]

Thank you!

[localghost]

Now that the problem is solved, please be so kind and mark the topic (not the last post) accordingly as written in Section 3 of the Board Rules. Please keep that in mind for the future so that further reminders will not be necessary.


Best regards and welcome to the board
Thorsten