>> "rasmus" == rasmus <Rasmus> writes: > Uwe Brauer <[email protected]> writes: >> Look the following examples >> >> \begin{displaymath} >> Xs,δ:=Hs,δ× Hs,δ+1× Hs,δ+1× >> Hs+1,δ+2 >> \end{displaymath} >> org-preview-latex-fragment does not work, change displaymath for >> equation, again org-preview-latex-fragment does not work, but >> \[ \] >> does work, this is odd
> 1. The example you posted contains utf8 symbols and you'd likely need
> unicodemath (the package) to display it. For this you'd need
> xelatex or lualatex. But probably you wrote it as plain LaTeX code
> in your document.
Hm it seems that the coding was changed when sending the formula, since
I wrote \delta in the original mail not δ.
In any case: *why* does \[ \] work, if it is question of a missing package?
> 2. displaymath is from amsmath. This works on my system:
> #+BEGIN_SRC org
> #+LATEX_HEADER: \usepackage{amsmath}
> \begin{displaymath}
> x=1
> \end{displaymath}
> #+END_SRC
Really?
Here is a minimal example
of a LaTeX file, which is not using amsmath, but the file is compiled as
it should be:
\documentclass{article}
\begin{document}
\begin{displaymath}
\int dx
\end{displaymath}
\end{document}
I also extended the corresponding configuration in org.el
(defcustom org-format-latex-header "\\documentclass[12pt]{article}
\\usepackage[usenames]{color}
\\usepackage{amsmath}
\\usepackage{plain}
\\usepackage[mathscr]{eucal}
Uwe
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