*MathJax extension does not work@ 2021-10-10 9:14 Rudolf Adamkovič2021-10-10 17:40 ` Daniel Fleischer 0 siblings, 1 reply; 4+ messages in thread From: Rudolf Adamkovič @ 2021-10-10 9:14 UTC (permalink / raw) To: emacs-orgmode I would like to use the "\mathclap" command from the "mathtools" package in my Org document. In LaTeX, it works. For HTML, I visited the Org manual [1] where I saw the following example: #+HTML_MATHJAX: cancel.js noErrors.js with a comment "it loads the two MathJax extensions ‘cancel.js’ and ‘noErrors.js’ [132]." (As a side-note, the first link in [132] points to 404.) Thus, I put the following into my Org file #+HTML_MATHJAX: mathtools.js but it seems to do nothing; the exported HTML code not even contain the word "mathtools". A file that demonstrates the problem: #+LATEX_HEADER: \usepackage{mathtools} #+HTML_MATHJAX: mathtools.js \begin{equation*} \begin{aligned} \lim_{R\to0}F_1 =\lim_{R\to0}\frac{2PR}{P+R} =\lim_{R\to0}\frac{2\cdot0\cdot{}R}{0+R} =\lim_{R\to0}\frac{0}{R}, =\underbrace{\lim_{R\to0}\frac{0}{1}}_{\mathclap{\text{by L'Hôpital's Rule with $\frac{d}{dR}R=1$}}} =\lim_{R\to0}0 =0. \end{aligned} \end{equation*} Rudy [1] https://orgmode.org/manual/Math-formatting-in-HTML-export.html -- "Logic is a science of the necessary laws of thought, without which no employment of the understanding and the reason takes place." -- Immanuel Kant, 1785 Rudolf Adamkovič <salutis@me.com> Studenohorská 25 84103 Bratislava Slovakia [he/him] ^ permalink raw reply [flat|nested] 4+ messages in thread

*Re: MathJax extension does not work2021-10-10 9:14 MathJax extension does not work Rudolf Adamkovič@ 2021-10-10 17:40 ` Daniel Fleischer2021-10-10 18:11 ` Daniel Fleischer 2021-10-10 19:39 ` Rudolf Adamkovič 0 siblings, 2 replies; 4+ messages in thread From: Daniel Fleischer @ 2021-10-10 17:40 UTC (permalink / raw) To: Rudolf Adamkovič;+Cc:emacs-orgmode Rudolf Adamkovič <salutis@me.com> writes: > I would like to use the "\mathclap" command from the "mathtools" package in my Org document. In LaTeX, it works. For Hi, there are 2 problems: first the mathtools.js library was introduced in mathjax 3.2 but org provided version 2.7 as can be seen in the HTML #+begin_src html <script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-AMS_HTML"></script> #+end_src One can use the newer mathjax by replacing this with #+begin_src html <script type="text/javascript" id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"> </script> #+end_src as seen in https://docs.mathjax.org/en/latest/web/start.html. You can just change the "path" in 'org-html-mathjax-options'. Secondly, mathtools is not autoloaded so you need to call it; for example you can put it in org using "export" block. #+begin_src HTML <script> window.MathJax = { loader: {load: ['[tex]/mathtools']}, tex: {packages: {'[+]': ['mathtools']}} }; </script> #+end_src After that it worked. Not sure why the "#+HTML_MATHJAX: mathtools.js" doesn't do anything. Need further investigation. -- Daniel Fleischer ^ permalink raw reply [flat|nested] 4+ messages in thread

*Re: MathJax extension does not work2021-10-10 17:40 ` Daniel Fleischer@ 2021-10-10 18:11 ` Daniel Fleischer2021-10-10 19:39 ` Rudolf Adamkovič 1 sibling, 0 replies; 4+ messages in thread From: Daniel Fleischer @ 2021-10-10 18:11 UTC (permalink / raw) To: Rudolf Adamkovič;+Cc:emacs-orgmode Daniel Fleischer <danflscr@gmail.com> writes: > Not sure why the "#+HTML_MATHJAX: mathtools.js" doesn't do anything. > Need further investigation. After examining the function 'org-html--build-mathjax-config' in 'ox-html.el' and also looking at the default values of - 'org-html-mathjax-options' - 'org-html-mathjax-template' I don't see any code that loads mathjax extensions; which means the documentation in https://orgmode.org/manual/Math-formatting-in-HTML-export.html is not accurate. That's my understanding. -- Daniel Fleischer ^ permalink raw reply [flat|nested] 4+ messages in thread

*2021-10-10 17:40 ` Daniel Fleischer 2021-10-10 18:11 ` Daniel FleischerRe: MathJax extension does not work@ 2021-10-10 19:39 ` Rudolf Adamkovič1 sibling, 0 replies; 4+ messages in thread From: Rudolf Adamkovič @ 2021-10-10 19:39 UTC (permalink / raw) To: emacs-orgmode Daniel Fleischer <danflscr@gmail.com> writes: > […] the mathtools.js library was introduced in mathjax 3.2 but org provided version 2.7 […] > You can just change the "path" in 'org-html-mathjax-options'. I see. I tried the following and it worked: (with-eval-after-load 'ox-html (add-to-list 'org-html-mathjax-options '(path "https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"))) > Secondly, mathtools is not autoloaded so you need to call it; for > example you can put it in org using "export" block. > > #+begin_src HTML The "export" blocks did not work for me, but the following did: (setq-default org-html-head " <script> window.MathJax = { loader: {load: ['[tex]/mathtools']}, tex: {packages: {'[+]': ['mathtools']}} }; </script>") > After that it worked. > Not sure why the "#+HTML_MATHJAX: mathtools.js" doesn't do anything. All the above makes using MathJax extensions impractical. I would have to include HTML hacks in my Org documents or tie the documents to my Emacs configuration, if I understand everything. Neither sounds right, and thus I will avoid using "modern" MathJax until Org switches to it and HTML_MATHJAX actually works. P.S. I wonder why Org uses MathJax 2.x when other popular tools, such as Pandoc, use the latest one. Thank you for your help! Rudy -- "'Contrariwise,' continued Tweedledee, 'if it was so, it might be; and if it were so, it would be; but as it isn't, it ain't. That's logic.'" -- Lewis Carroll, Through the Looking Glass Rudolf Adamkovič <salutis@me.com> Studenohorská 25 84103 Bratislava Slovakia [he/him] ^ permalink raw reply [flat|nested] 4+ messages in thread

end of thread, other threads:[~2021-10-10 19:40 UTC | newest]Thread overview:4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-10-10 9:14 MathJax extension does not work Rudolf Adamkovič 2021-10-10 17:40 ` Daniel Fleischer 2021-10-10 18:11 ` Daniel Fleischer 2021-10-10 19:39 ` Rudolf Adamkovič

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