Initial Query

In latex when I force a newline in a caption with \\ it gives an error saying \Hy@tempa has an extra } runaway argument?

LLM Generation

Query

In latex when I force a newline in a caption with \\ it gives an error saying \Hy@tempa has an extra } runaway argument?

Output

When you encounter an error saying "`\Hy@tempa` has an extra `}`" or "runaway argument" while trying to force a newline in a caption using `\\`, it typically means that the `\\` command is not being interpreted correctly in the context where you're using it. This can happen because `\\` is often redefined or has special behavior in certain environments, including captions. To force a newline in a caption without causing such errors, you can use the `\newline` command or, more robustly, the `\protect` command to protect the `\\` from being misinterpreted. Here's how you can do it: 

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\documentclass{article}
\usepackage{graphicx}

\begin{document}

\begin{figure}[h!]
    \centering
    \includegraphics[width=0.5\textwidth]{example-image-a}
    \caption{This is the first line of the caption.\\This is the second line of the caption.}
\end{figure}

\begin{figure}[h!]
    \centering
    \includegraphics[width=0.5\textwidth]{example-image-a}
    \caption{This is the first line of the caption.\protect\\This is the second line of the caption.}
\end{figure}

\end{document}
In the first example, `\\` is used directly, which might cause issues depending on the context. In the second example, `\protect\\` is used to ensure that `\\` is interpreted correctly. If you still encounter issues, another approach is to use the `caption` package, which provides more control over captions and can handle newlines more gracefully: 
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\documentclass{article}
\usepackage{graphicx}
\usepackage{caption}

\begin{document}

\begin{figure}[h!]
    \centering
    \includegraphics[width=0.5\textwidth]{example-image-a}
    \caption{This is the first line of the caption.\\This is the second line of the caption.}
\end{figure}

\end{document}
Using the `caption` package can help avoid many common issues with caption formatting.

Substring Evaluation

Testing if the previous output contains the string \protect: True

Initial Query

In latex when I force a newline in a caption with \\ it gives an error saying \Hy@tempa has an extra } runaway argument?

LLM Generation

Query

In latex when I force a newline in a caption with \\ it gives an error saying \Hy@tempa has an extra } runaway argument?

Output

In LaTeX, when you encounter an error related to `\Hy@tempa` and a runaway argument while trying to force a newline in a caption using `\\`, it typically means that there is an issue with how the newline command is being interpreted within the caption environment. This can often occur due to the way certain packages (like `hyperref`) interact with captions. Here are some steps you can take to resolve this issue: 1. **Use `\protect` Command**: The `\protect` command can help to prevent certain commands from being expanded too early. This often resolves issues related to `\\` in captions. 

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   \caption{First line \protect\\ Second line}
2. **Use `\newline`**: Sometimes, using `\newline` instead of `\\` can help avoid these issues. 
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   \caption{First line \newline Second line}
3. **Use `minipage`**: If you need more control over the formatting within the caption, you can use a `minipage` environment. 
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   \caption{%
     \begin{minipage}{\linewidth}
     First line \\
     Second line
     \end{minipage}
   }
4. **Check for Conflicting Packages**: Ensure that there are no conflicting packages that might be causing issues with the caption environment. The `hyperref` package sometimes requires special handling. Here's an example of how you might use `\protect` within a caption: 
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\documentclass{article}
\usepackage{graphicx}
\usepackage{hyperref}

\begin{document}

\begin{figure}[h!]
    \centering
    \includegraphics[width=0.5\textwidth]{example-image-a}
    \caption{First line \protect\\ Second line}
    \label{fig:example}
\end{figure}

\end{document}
If these solutions do not resolve the issue, please provide more context or a minimal working example (MWE) so that the problem can be diagnosed more accurately.

Substring Evaluation

Testing if the previous output contains the string \protect: True

Initial Query

In latex when I force a newline in a caption with \\ it gives an error saying \Hy@tempa has an extra } runaway argument?

LLM Generation

Query

In latex when I force a newline in a caption with \\ it gives an error saying \Hy@tempa has an extra } runaway argument?

Output

When you encounter an error in LaTeX with a message like "`\Hy@tempa has an extra }`" or "`runaway argument`" while trying to force a newline in a caption using `\\`, it typically indicates a problem with how you're attempting to insert the line break. Here are a few steps to resolve the issue: 1. **Use `\protect`:** The `\\` command can sometimes cause issues in moving arguments, such as those in captions. Wrapping it with `\protect` can help. 

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   \caption{This is a caption with a line break \protect\\ here}
2. **Use `\newline`:** Another approach is to use `\newline` instead of `\\`. This command is often more robust in such contexts. 
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   \caption{This is a caption with a line break \newline here}
3. **Use a `\parbox` or `minipage`:** For more complex formatting within a caption, you can use a `parbox` or `minipage` to handle the layout. 
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   \caption{This is a caption with a line break \parbox{\linewidth}{here}}
4. **Use the `caption` package:** The `caption` package provides enhanced control over caption formatting and can handle line breaks more gracefully. 
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   \usepackage{caption}
   \caption{This is a caption with a line break \\ here}
Here is an example using the `caption` package: 
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\documentclass{article}
\usepackage{caption}

\begin{document}

\begin{figure}[h]
    \centering
    \caption{This is a caption with a line break \\ here}
\end{figure}

\end{document}
By using these methods, you should be able to avoid the error and successfully insert a line break into your caption.

Substring Evaluation

Testing if the previous output contains the string \protect: True

Initial Query

In latex when I force a newline in a caption with \\ it gives an error saying \Hy@tempa has an extra } runaway argument?

LLM Generation

Query

In latex when I force a newline in a caption with \\ it gives an error saying \Hy@tempa has an extra } runaway argument?

Output

In LaTeX, using `\\` to force a newline inside a `\caption` can sometimes cause issues, especially when using packages like `hyperref` that modify how captions are handled. The error you're encountering suggests that there might be a problem with how the `hyperref` package is processing the caption. One way to work around this issue is to use the `caption` package, which provides more flexibility and control over captions, including the ability to insert line breaks. Here's an example of how you can use the `caption` package to handle line breaks in captions: 1. Add the `caption` package to your preamble: 

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   \usepackage{caption}
2. Use the `\captionsetup` command to allow line breaks: 
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   \captionsetup{singlelinecheck=false}
3. Use `\protect` before `\\` to force a newline in the caption: 
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   \caption{This is the first line\protect\\and this is the second line}
Here is a complete example: 
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\documentclass{article}
\usepackage{graphicx}
\usepackage{hyperref}
\usepackage{caption}

\captionsetup{singlelinecheck=false}

\begin{document}

\begin{figure}[h]
    \centering
    \includegraphics[width=0.5\textwidth]{example-image-a}
    \caption{This is the first line\protect\\and this is the second line}
    \label{fig:example}
\end{figure}

\end{document}
In this example, `\protect` ensures that `\\` is correctly interpreted as a line break within the caption. The `\captionsetup{singlelinecheck=false}` command tells the `caption` package to allow multiple lines in the caption. This should resolve the issue with the `\Hy@tempa has an extra } runaway argument?` error and allow you to force a newline in your caption.

Substring Evaluation

Testing if the previous output contains the string \protect: True

Initial Query

In latex when I force a newline in a caption with \\ it gives an error saying \Hy@tempa has an extra } runaway argument?

LLM Generation

Query

In latex when I force a newline in a caption with \\ it gives an error saying \Hy@tempa has an extra } runaway argument?

Output

In LaTeX, forcing a newline in a caption using `\\` can sometimes cause issues, especially when using certain packages or when the document class has specific handling for captions. The error message you're seeing, `\Hy@tempa has an extra } runaway argument?`, suggests that there might be a conflict with the `hyperref` package, which is often used for creating hyperlinks in documents. Here are a few ways to handle newlines in captions without running into this issue: 1. **Use the `\protect` Command:** Wrapping the `\\` command with `\protect` can sometimes resolve issues with special characters in captions. 

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   \caption{This is the first line\protect\\This is the second line}
2. **Use the `\newline` Command:** Instead of `\\`, you can use `\newline` to force a line break. 
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   \caption{This is the first line\newline This is the second line}
3. **Use the `caption` Package:** The `caption` package provides more control over captions and can help avoid issues with special characters. 
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   \usepackage{caption}
   \captionsetup{singlelinecheck=false}

   \caption{This is the first line\\This is the second line}
4. **Use a `tabular` Environment:** For complex captions with multiple lines, you can use a `tabular` environment within the caption. 
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   \caption{
     \begin{tabular}{l}
       This is the first line \\
       This is the second line
     \end{tabular}
   }
Here's an example incorporating the `caption` package: 
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\documentclass{article}
\usepackage{graphicx}
\usepackage{caption}
\captionsetup{singlelinecheck=false}

\begin{document}

\begin{figure}[h]
    \centering
    \includegraphics[width=0.5\textwidth]{example-image}
    \caption{This is the first line\\This is the second line}
\end{figure}

\end{document}
By using one of these methods, you should be able to force a newline in your caption without encountering the error related to `\Hy@tempa`.

Substring Evaluation

Testing if the previous output contains the string \protect: True