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I had written down an answer for my own question and would like get review comments/suggestion. Also it might be helpful for others to answer the question in a better way. Problem is I had written it down in latex and made it into a pdf document. I want to know if there is any way I can upload a pdf or any workaround to this problem.

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  • $\begingroup$ Why not just post the LaTeX itself? $\endgroup$ Apr 17 '11 at 4:02
  • $\begingroup$ @Akhil Mathew : Do you mean copying the contents of the latex file into the answer box ? It is not working, because it is not accepting several syntax elements like \begin{equation}, and things like that. $\endgroup$
    – Rajesh D
    Apr 17 '11 at 4:21
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    $\begingroup$ Dear Rajesh, \begin{equation} should be converted to a double dollar sign. If you're having serious difficulties, I'd encourage you just to post the TeX itself and let someone else fix it (if you post a PDF, it can't be edited). $\endgroup$ Apr 17 '11 at 4:29
  • $\begingroup$ @Akhil : there are some arrays of equations and numbering of equations which are creating the problems, i cannot convert them to equations between double dollars, as loose numbering and also equation arrays. Please let me know whether such things are possible. $\endgroup$
    – Rajesh D
    Apr 17 '11 at 4:34
  • $\begingroup$ Have a look at this related question: Creating simple graphs. My answer there might be of interest for you :-) $\endgroup$ Apr 17 '11 at 8:11
  • $\begingroup$ You still could use WriteLaTeX or something similar to share both LaTeX source and pdf-file. $\endgroup$ Dec 17 '14 at 14:39
  • $\begingroup$ An answer to this post contains some suggestions on converting the LaTeX source to MarkDown+MathJax. (Assuming you use only very limited subset of LaTeX commands.) $\endgroup$ Dec 17 '14 at 14:54
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    $\begingroup$ As of 2014: Equation numbering has been implemented, and surrounding display equation environments with double dollar signs is no longer necessary. $\endgroup$
    – epimorphic
    Dec 17 '14 at 15:47
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The technical answer is no. The Math.SE site does not support uploads/embeddings of pdf files. If you insist on sharing a pdf file, you should consider using some-sort of "Digital Locker" service (if you don't have your own website) and paste a link.

However, I strongly suggest against that. When material can easily be presented in textual format included on the site, it should be done so. This is so that your answer will be useful for the next person who comes along (in the event of link rot and so on). It is better to re-type it in a mix of mark-down and MathJax formatted mathematics.

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If you surround the whole eqnarray block with double dollar signs, it works. That is,

$$\begin{eqnarray}
e^{i\pi} + 1 & = & 0 \\
E & = & mc^2
\end{eqnarray}$$

becomes

$$\begin{eqnarray} e^{i\pi} + 1 & = & 0 \\ E & = & mc^2 \end{eqnarray}$$

It seems that MathJax doesn't support equation numbering yet. You can always try to give the equation a number or name "by hand" in the surrounding text.

P.S. I would suggest, as a matter of general practice, using the align environment instead of eqnarray. See the article "Avoid eqnarray!" by Lars Madsen.

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