Exploring LaTeX Tables in Forum Posts

[Stephen Tashi]

Do LaTex tables work in forum posts? I've never used them before. Today I tried copying several examples from pages on the web such as:

$$\begin{tabular}{ l c r } 1 & 2 & 3 \\ 4 & 5 & 6 \\ 7 & 8 & 9 \\ \end{tabular}$$

which on my browser doesn't show up as a table. I tried using math renderers HTML-CSS and SVG.
I don't see any syntax error in that example, but, as I said, I've never tried to write tables in LaTex before.

 

[LCKurtz]

Do LaTex tables work in forum posts? I've never used them before. Today I tried copying several examples from pages on the web such as:

$$\begin{tabular}{ l c r } 1 & 2 & 3 \\ 4 & 5 & 6 \\ 7 & 8 & 9 \\ \end{tabular}$$

which on my browser doesn't show up as a table. I tried using math renderers HTML-CSS and SVG.
I don't see any syntax error in that example, but, as I said, I've never tried to write tables in LaTex before.

That syntax is fine for a LaTeX document. I'm no expert on this, but I think "tabular" is an environment variable, and they aren't generally supported here.

Disclaimer: Someone who knows what they are talking about may correct me.

 

[Greg Bernhardt]

We use MathJax which accepts most LaTeX commands, but it does not accept the tabular environment. Some here have used Arrays to fake a table.

 

[AlephZero]

On PF (and presumably any MathJax application) your input is interpreted in LaTex "math mode", as if it were between $\$ \dots \$$ or $\$\$ \dots \$\$$ in "standard" LaTeX.

So you can't use environments like "tabular" that are meant to be used outside of math mode.

 

[DrGreg]

Do LaTex tables work in forum posts? I've never used them before. Today I tried copying several examples from pages on the web such as:

$$\begin{tabular}{ l c r } 1 & 2 & 3 \\ 4 & 5 & 6 \\ 7 & 8 & 9 \\ \end{tabular}$$

which on my browser doesn't show up as a table. I tried using math renderers HTML-CSS and SVG.
I don't see any syntax error in that example, but, as I said, I've never tried to write tables in LaTex before.

Consulting our LaTeX FAQ, you can get the effect you want via

\begin{array}{| l | c | r |}
\hline
  1 & 2 & 3 \\
\hline
  4 & 5 & 6 \\
\hline
  7 & 8 & 9 \\
\hline
\end{array}

$$\begin{array}{| l | c | r |} \hline 1 & 2 & 3 \\ \hline 4 & 5 & 6 \\ \hline 7 & 8 & 9 \\ \hline \end{array}$$