[texhax] Plain TeX: a question about \par before and after displayed equations

[Rodolfo Medina]

Rodolfo Medina <rodolfo.medina at gmail.com> writes:

> I use Emacs as text editor, and the command `M-q' fills a paragraph.  So I
> need that in my .tex file paragraphs are separated by blank lines, else
> paragraphs will be messed up by `M-q'.


> bla bla bla
> %
> $$x = y$$
> %
> bla bla
>
>
>
> [...] this latter does not work for me



This was because in the end of the file I have:

%%% Local Variables: 
%%% mode: plain-TeX 
%%% End:

I changed plain-TeX into TeX and now it works.  I wonder if there is a way to
make it work also without changing that.

Rodolfo