[Tex/LaTex] Math column in tabular without “array” package

math-modetables

I'd like to do something like

\begin{tabular}{>{$}c<{$} c}

but I'm not able to use the array package (which defines >{...} and <{...}) due to technical restrictions.

Is there any simple way I can achieve this?

Best Answer

(Making an answer from my comment)

I guess that the only way is to add $ to the entries of the table. If you're not allowed to change the preamble, probably they won't be fond of some strange code in the document.

Related Solutions

[Tex/LaTex] Use column-separator & (ampersand) inside \newenvironment

The problem is that the \begin{...} and \end{...} pair commands automatically create a "group" so that, in effect, the & and \\ are "out of scope" for the tabular, while inside the "production" environment they just show up at a place where the compiler is not expecting them.

A second problem with your definitions is that, even if they would work, they would be adding an extra \\ at the end of the tabular, adding an unwanted space at the end. Perhaps some more appropriate definitions would be

\documentclass[a4paper,10pt]{article}

\newcommand{\production}[1]{#1 ::= &}
\newenvironment{grammar}{\tabular{p{3cm}l}}{\endtabular}

\begin{document}
\begin{grammar}
\production{XmlStartTag} ... \\
\production{XmlOtherTag} ... \\
\production{XmlEndTag} ...
\end{grammar}
\end{document}

Note no \\ at the end of the last production. Also in the definition of the grammar you don't need to repeat the work of \begin/\end, and you can instead directly use \tabular and \endtabular.

[Tex/LaTex] array package breaks references in a tabular environment

use the inline mode:

\documentclass[oneside]{article}
\usepackage{amsmath,amsthm,array}                                                                          
\newcounter{proofc}                                                                      
    \DeclareRobustCommand\stepproofc{\refstepcounter{proofc}(\arabic{proofc})}               

    \newenvironment{twoproof}
      {\setcounter{proofc}{0} \begin{center}$                                             
        \array{ >{\global\stepproofc\label{step\theproofc} \hspace{4pt}}c | l }}
      { \endarray $ \end{center}}

 \theoremstyle{definition}                                                                
 \newtheorem{thm}{Theorem}[section]                                                       
\begin{document}                                                                

\begin{thm} This theorem exists to highlight the problem. \\                             
If you remove it or take the proof out of the theorem, the ref numbers simply disappear in the proof below


\begin{twoproof}                                                                         
 E \vdash \alpha & \pi_1   \\                                                
 E \vdash \beta  & \pi_2 \\
 E \vdash \gamma & \ref{step1} \mbox{ and } \ref{step2}                                   
\end{twoproof}

 \end{thm}                                                                                

\end{document}

Best Answer

Related Solutions

[Tex/LaTex] Use column-separator & (ampersand) inside \newenvironment

[Tex/LaTex] array package breaks references in a tabular environment

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