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2_programmation:erreurs:not_in_outer_par_mode [2018/05/27 21:25]
d.p.carlisle
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---- 
-title: Not in outer par mode 
-category: errors 
-permalink: /​FAQ-parmoder 
-redirect_from:​ /​FAQ-ouparmd 
-date: 2018-05-27 
---- 
- 
-# Not in outer par mode 
- 
-For example: 
-```latex 
-*\mbox{\marginpar{foo}} 
- 
-! LaTeX Error: Not in outer par mode. 
-``` 
-The error comes when you try to build something movable inside a box. 
-Movable things, in this context, are floating environments 
-(`figure` and `table`, for example), and 
-`\marginpar`s. ​ LaTeX simply doesn'​t have the mechanisms for 
-floating out of boxes. ​ In fact, floats and `\marginpar`s 
-themselves are built out of boxes, so that they can't be nested. 
- 
-If your error arises from `\marginpar`,​ you simply have to think of 
-an alternative way of placing the command; there is no slick solution. 
- 
-If a floating environment is the culprit, it may be possible to use 
-the `H` placement option, provided (for example) by the 
-[`float`](https://​ctan.org/​pkg/​float) package: 
-<!-- {% raw %} --> 
-```latex 
-\parbox{25cm}{% 
-  \begin{figure}[H] 
-  ... 
-  \caption{Apparently floating...} 
-  \end{figure}% 
-} 
-``` 
-<!-- {% endraw %} --> 
-This example makes little sense as it stands; however, it is 
-conceivable that sane uses could be found (for example, using a 
-package such as [`algorithm2e`](https://​ctan.org/​pkg/​algorithm2e) to place two algorithms 
-side-by-side). 
- 
- 
-Annother common occurrence is when the user wants a figure somewhere 
-inside a table: 
-```latex 
-\begin{tabular}{|l|} 
-  \hline 
-  \begin{figure} 
-  \includegraphics{foo} 
-  \end{figure} 
-  \hline 
-\end{tabular} 
-``` 
-a construction that was supposed to put a frame around the diagram, 
-but doesn'​t work, any more than: 
-```latex 
-\framebox{\begin{figure} 
-  \includegraphics{foo} 
-  \end{figure}% 
-} 
-``` 
-The problem is, that the `tabular` environment,​ and the 
-`\framebox` command restrain the `figure` environment 
-from its natural m&​eacute;​tier,​ which is to float around the document. 
- 
-The solution is simply not to use the `figure` environment 
-here: 
-```latex 
-\begin{tabular}{|l|} 
-  \hline 
-  \includegraphics{foo} 
-  \hline 
-\end{tabular} 
-``` 
-What was the float for?&​nbsp;&​mdash;​ as written in the first two examples, it 
-serves no useful purpose; but perhaps you actually wanted a diagram 
-and its caption framed, in a float. 
- 
-It's simple to achieve this&​nbsp;&​mdash;​ just reverse the order of the 
-environments (or of the `figure` environment and the 
-command): 
-```latex 
-\begin{figure} 
-  \begin{tabular}{|l|} 
-    \hline 
-    \includegraphics{foo} 
-    \caption{A foo} 
-    \hline 
-  \end{tabular} 
-\end{figure} 
-``` 
-The same goes for `table` environments (or any other sort 
-of float you've defined for yourself) inside tabulars or box commands; 
-you _must_ get the float environment out from inside, one way or 
-another. 
- 
  
2_programmation/erreurs/not_in_outer_par_mode.1527449123.txt.gz · Dernière modification: 2018/05/27 21:25 par d.p.carlisle
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