Conversion from LO formula to Tex/LaTex

English
#1

To whom it may concern,

I’m about to finish a series of mathematical proofs on Wikipedia of the various Trachtenbeg methods.

I use the formula writing in LO Writer. Alas I’m not keen on Tex/LaTex and I gave up trying to convert an LO formula.
Is there a translator somewhere - which is not based on JAVA ?? (I’m very reluctant to install JAVA).

THX in advance/René

#2

There are some extension, that maybe can help.
https://extensions.libreoffice.org/en/extensions/show/writer2latex-1
https://extensions.libreoffice.org/en/extensions/show/texmaths-1

#3

Thx a lot. The first suggestion, unfortunately, uses JAVA, which I try hard to avoid…
I shall give the second one a try.

/René

-------- Oprindelig besked --------

#4

but the second is using an installed TeX to create a picture of the formula to insert in LibreOffice - not the reverse way you seem to ask for.
.
Why do you have trouble with java ?

#5

I have No trouble with JAVA. But being an enduser, I don’t want it because of security/vulnerability…
A bit nerdy perhaps.

/René

-------- Oprindelig besked --------

#6

Which issues with security/vuknerability? Java is not ActiveX. The times of Java applets running in (and escaping from) browsers are over. Local Java applications impose no higher risk than any other application.

#9

Sorry, I got it wrong as of where to ask (post now deleted) - hereby:
…
Continuing the discussion from Conversion from LO formula to Tex/LaTex:

Hi all, and THX for all your suggestions.
Having followed a very log and winding road on installing JAVA JRE (without vulnerabilities, as they say now a days), LaTex fonts, babel et al. I’m back to square one.

First of all, I can only “LaTex” english text to PDF.
I’ve found no way to get a LaTex formula, to put into Wikipedia.

Further suggestions ?

#10

You did this directly in TeX? Or from Writer2Latex-Extension? If you used the extension for a YourFile.odt there should now exist a YourFile.tex wich you can search for the source.
.
If your Writer-File included a Formula it is omitted??
.
Could you upload a sample from your .odt here? As you intend to post on Wikipedia there should not be a problem with privacy…
Maybe give us a shortened copy.

#11

Maybe a solution possible, if you can save a formula in MatML first:

#12

I found out, that I needed yet another module named teckit.

Now I do get a file with some kind of LaTex:

\begin{gathered}R=T\ast 2\Leftrightarrow \{}\R=2\ast
(10^{(n-1)}\ast c_n+…+10^0\ast c_1)\Leftrightarrow \{}\R=10^{(n-1)}\ast 2\ast c_n+…+10^0\ast 2\ast
c_1\{}\\mathit{QED}\end{gathered}

When I paste this into Wiki I get an errormessage saying:
**Failed to parse (unknown function “\begin{gathered}”): {\displaystyle \begin{gathered}R=T\ast 2\Leftrightarrow \{}\R=2\ast (10^{(n-1)}\ast c_n+…+10^0\ast c_1)\Leftrightarrow \{}\R=10^{(n-1)}\ast 2\ast c_n+…+10^0\ast 2\ast c_1\{}\\mathit{QED}\end{gathered}}

Same-same if I replace \begin{gathered} … \end{gathered} with \begin{math} … \end{math}, which I think are the proper LaTex tags ?

So due to your patient help we are getting close now - I think.
…
PS. The LO math is:
R = T2 dlrarrow
newline
newline
R = 2(10^(n-1)c_{n} + … + 10^0c_{1}) dlrarrow
newline
newline
R = 10^(n-1)2c_{n} + … + 10^02c_{1}
newline
newline
QED

#13

It is a long time since I used TeX a lot… I would remove the \begin{gathered} and the \end{gathered}
and replace both with a $-sign, as the $ is the typical “math-mode” in TeX - especially as you seem to intend to put the formula in wikipedia. (Do they have an interpreter for tex-formula ?)
.
The other way round: I would assume gathered is in an additional .sty-file by Writer2Latex and you have to find out, why it is not found…

#14

THX again - I shall try to sort it out.

I’ve tried, to no avail, to use $ … $, ( … ) and \begin{math} … \end{math}.

Also, if I paste the piece of formula from the generated .tex file back to LO, it does interpret all correctly, leaving section af question marks (???).

#15

I just installed the Writer2LaTeX extension and tried with an arbitrary formula embedded in a Writer document. Math window vs. DVI viewer on the left:

Bildschirmfoto von 2022-09-12 09-55-24
Bildschirmfoto von 2022-09-12 09-55-241600×900 142 KB

and this is the Math formula:

size 28 nospace { matrix{
alignr nospace{int f(x)dx} # {}={} # alignl {alignc nospace{ 2 x^2 + 3 x - 1 }} over  {alignc {x^{1/3}}}dx ##
alignr {} # {}={} # alignl int left({ alignc {nospace{2 x^2} over {x^{1/3}} } + { nospace{3 x} over {x^{1/3}} } - { {1} over {x^{1/3}}} }right)dx ##
alignr {} # {}={} # alignl int (nospace{2 x^{5/3} + 3 x^{2/3} - x^{1/3}})dx ##
alignr {} # {}={} # alignl 2 cdot { alignc{{3} over {8}} } x^{8/3} + 3 cdot { alignc{ {3} over {5}} } x^{5/3} - 3 cdot { alignc{{3} over {2} }} x^{2/3} + C ##
alignr {} # {}={} # alignl {} { alignc {{3} over {4}} } x^{8/3} + { alignc{{9} over {5}} } x^{5/3} - { alignc{{3} over {2}} } x^{2/3} + C} }
#16

Nice - is there some versioning between Windows and (Debian) Linux ???

Maybe, if you could cut just the formula from Math in LON and mail it to me for a try ???

#17

The LibreOffice Math formula is the one below my screenshot.
The LaTeX code goes like this:

% This file was converted to LaTeX by Writer2LaTeX ver. 1.6.1
% see http://writer2latex.sourceforge.net for more info
\documentclass[a4paper,landscape]{article}
\usepackage[latin1]{inputenc}
\usepackage{amsmath}
\usepackage{amssymb,amsfonts,textcomp}
\usepackage[T1]{fontenc}
\usepackage[english,magyar]{babel}
\usepackage{color}
\usepackage{array}
\usepackage{hhline}
\usepackage{hyperref}
\hypersetup{pdftex, colorlinks=true, linkcolor=blue, citecolor=blue, filecolor=blue, urlcolor=blue, pdftitle=, pdfauthor=Andreas Säger, pdfsubject=, pdfkeywords=}
% Page layout (geometry)
\setlength\voffset{-1in}
\setlength\hoffset{-1in}
\setlength\topmargin{2cm}
\setlength\oddsidemargin{2cm}
\setlength\textheight{17.001cm}
\setlength\textwidth{25.7cm}
\setlength\footskip{0.0cm}
\setlength\headheight{0cm}
\setlength\headsep{0cm}
% Footnote rule
\setlength{\skip\footins}{0.119cm}
\renewcommand\footnoterule{\vspace*{-0.018cm}\setlength\leftskip{0pt}\setlength\rightskip{0pt plus 1fil}\noindent\textcolor{black}{\rule{0.25\columnwidth}{0.018cm}}\vspace*{0.101cm}}
% Pages styles
\makeatletter
\newcommand\ps@Standard{
  \renewcommand\@oddhead{}
  \renewcommand\@evenhead{}
  \renewcommand\@oddfoot{}
  \renewcommand\@evenfoot{}
  \renewcommand\thepage{\arabic{page}}
}
\makeatother
\pagestyle{Standard}
\title{}
\author{Andreas Säger}
\date{2022-09-12}
\begin{document}
Text body


\bigskip

\begin{equation*}
{\begin{matrix}\hfill {\int f(x)\mathit{dx}}&=&\frac{{2x^2+3x-1}}{x^{1/3}}\mathit{dx}\hfill\null \\\hfill &=&\int
\left(\frac{{2x^2}}{x^{1/3}}+\frac{{3x}}{x^{1/3}}-\frac 1{x^{1/3}}\right)\mathit{dx}\hfill\null \\\hfill &=&\int
({2x^{5/3}+3x^{2/3}-x^{1/3}})\mathit{dx}\hfill\null \\\hfill &=&2\cdot \frac 3 8x^{8/3}+3\cdot \frac 3 5x^{5/3}-3\cdot
\frac 3 2x^{2/3}+C\hfill\null \\\hfill &=&\frac 3 4x^{8/3}+\frac 9 5x^{5/3}-\frac 3 2x^{2/3}+C\hfill\null \end{matrix}}
\end{equation*}

\bigskip


\bigskip


\bigskip
\end{document}
#18

THX a lot for the “formula code”
Unfortunately - neither LO (v. 7.4.1.1 or 7.5DEV) nor Wikipedia Math section can handle the “formula code”.
In LO there are still lots of “upside down” question marks - and Wiki still cannot parse it.

I’m about to give up, I’m afraid.

#19

Works for me with OpenOffice 4.1.11, LibreOffice 6.0, 7.2, 7.3
I can’t run 7.4 for now.

Here is the formula embedded in a Writer document which I could export to LaTeX after installing the Writer2Latex extension:
test.odt (15.7 KB)

#20

THX for your vast help.

It works for me too in LO Math - just pasted it into the OLE object window and got the formula right away.

#21

Well, THX all for kind and patient guidance.

The solution is to edit Wiki formulas by hand.
I’ve found no way to automate/filter the operation.

Starting point, LO Math
R = T*2 dlrarrow
newline
newline
R = 2*(10^(n-1)*c_{n} + … + 10^0*c_{1}) dlrarrow
newline
newline
R = 10^(n-1)*2*c_{n} + … + 10^0*2*c_{1}
newline
newline
QED

Via Writer2LaTex
$\begin{gathered}R=T\ast 2\Leftrightarrow \{}\R=2\ast
(10^{(n-1)}\ast c_n+…+10^0\ast c_1)\Leftrightarrow \{}\R=10^{(n-1)}\ast 2\ast c_n+…+10^0\ast 2\ast
c_1\{}\\mathit{QED}\end{gathered}$

Finishing in Wiki, by writing by hand
<math>
R = T*2 \Leftrightarrow

R = 2*(10^{n-1}*c_{n} + \ldots + 10^0*c_{1}) \Leftrightarrow

R = 10^{n-1}*2*c_{n} + \ldots + 10^0*2*c_{1}

QED
</math>

#22

To be extremely nerdy and precise, there are 3 ways of putting a formula into Wiki. I ended up with the LaTex like one, like this:

<div style=“text-align: center;”>
<math display=“inline”>
\begin{align}
R & = T2 \Leftrightarrow \
R & = 2(10^{n-1}c_{n} + \ldots + 10^0c_{1}) \Leftrightarrow \\
R & = 10^{n-1}2c_{n} + \ldots + 10^02c_{1} \\
\\
& QED
end{align}
</math>
</div>

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