using <mcarries> in MathML - mathjax

I am new to coding and trying to write elementary math functions using MathML on MathJax 2.6.1. We recently acquired the function to be able to "carry" numbers in long addition, subtraction, etc.
Can someone show me how to implement this extension?

It is not clear if you are asking how to write MathML that includes <mcarries>, or if you are asking how to get MathJax to process <mcarries> elements. For the former, see the MathML specification examples. For the latter, you need to load the mml3 extension, which says to include
<script type="text/x-mathjax-config">
MathJax.Hub.Config({
MathML: {
extensions: ["mml3.js"]
}
});
</script>
somewhere before the script that loads MathJax.js itself.

Related

Polymer override script loaded by HTML import

Is it possible to access a (Polymer) web component's dependency (also a component) which the only thing it does is load a js script, and override that with another (newer version in my case) script?
Concrete problem: I'm using various Polymer elements (say paper-dialog for example) which use neon-animation whose different animations all import the web-animations HTML which loads the script I want to override.
In other words I would like to perform something like what the /deep/ combinator does for CSS to penetrate into this specific HTML 'component' and add a newer version of the web-animations-next-lite.min.js script.
As for the why: the idea is to use a Chrome extension to perform this since remote update is not an option (internet connectivity limitations). I need to do this since with Chrome v54 our app "broke" (since we use an older web-animations version) by fixing the WebAnimations API so these errors broke animations and with that functionality (popups not appearing).
I already tried injecting the newer version script in my main HTML body with Chrome extension's content script but didn't have any luck there..
Thanks in advance for any ideas!
I know its a bit of a hack, but can't you just put your own version of the web-animations script in bower_components. The problem with trying to alter the polymer element in place is that it will have already loaded the script before you can get at it.
Listen to the load event on you HTML Imports <link>, then add a <script> element with the right src attribute.
It's this last downloaded (and parsed) script that will be taken in account.
<script>
function loaded() {
//file.html loaded
document.write( '<script src="new-file.js"></script>' )
}
</script>
<link rel=import href="file.html" onload="loaded()">

Why MathJax does not render the LaTeX logo with the "\LaTeX" macro?

I'm using MathJax in a hand-written web page (which is unfortunately not online yet, so I cannot point you to the whole source code).
I embed MathJax in the page as follows, which is simply copy/pasted from the official documentation:
<script type="text/x-mathjax-config">
MathJax.Hub.Config({
"HTML-CSS": {
webFont: "TeX"
}
});
</script>
<script
type="text/javascript"
src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_HTML.js">
</script>
After that, MathJax seems to work well on every formula I tried, but I cannot get it to render the \TeX and \LaTeX commands to obtain the TeX and LaTeX logos. Everything on the web makes it look like these two commands are supported by MathJax, and I remember of having used them with MathJax in a wordpress blog years ago, so I think there must be some extension or option missing.
So why are those commands not working and what can I do to fix them? Or are they not supported?
MathJax only processes the math on the page, not other text-mode macros. So if you want MathJax to process the \TeX or \LaTeX macros, try using
$\rm\TeX$ or $\rm\LaTeX$
in your page instead.
EDIT:
Here is an example. Run the code snippet to see it work.
<script src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_HTML"></script>
\(\rm\TeX\) and \(\rm\LaTeX\)

MathJax: do not show raw latex preview

If you visit a page with MathJax on it, you will see raw latex for a moment, before is is processed and turned into nice "math". Is it possible to not show that raw source, and only display the math once it is ready?
Example page: http://www.mathjax.org/demos/tex-samples/
It depends what you mean by that. Naturally, what's in the page will be displayed and if you rely on JS to remove it then there's always a chance it will be visible for a minimal amount.
The straight-forward approach is to hide your content and tell MathJax to unhide it once typesetting is done. (This will depend on the complexity of your content and your design.)
This sample (which can be found in the main code repository) shows as simple approach:
a) set visibility:hidden on some global element
b) Add a function to the MathJax queue to change it back once MathJax layout is done. E.g.,
<script type="text/x-mathjax-config">
MathJax.Hub.Queue(function () {
document.getElementById("hide_page").style.visibility = "";
});
</script>

Configuring mathjax to stick to certain divs

I have recently started a blog, in which I talk about programming, reading, science, and math. Now, for the programming part, I have installed SyntaxHighlighter, but I am rather confused with what I should use for math. I'm thinking about using MathJax, since I'm used to it and it's pretty good. The issue is, MathJax will interfere with other stuff. For example, it can interfere with any PHP code (which has lots of dollar signs) that I use on a programming post.
Now I want to keep the inline/block dollar signs, but I don't want it to blow up other stuff. I was thinking about associating MathJax with a certain CSS class, so that I can enclose all sections which use math extensively with those tags. By this, I mean that I can still type normally within those divs (without having it math-ified), but I can use the dollar signs and get math code. Outside the divs, any dollar signs will be left alone.
Does anyone know a configuration option that lets me do this? I know JS, but I can't find any options in the documentation. Thought I'd ask here before plowing through the code.
add class="tex2jax_ignore" to your document <body> tag, and then use class="tex2jax_process" on the containers for the parts of your page where you want to include mathematics. As others have pointed out, you can configure the class names to use for these features. E.g.
<script type="text/x-mathjax-config">
MathJax.Hub.Config({
tex2jax: {
inlineMath: [['$','$'],['\\(','\\)']],
processClass: "mathjax",
ignoreClass: "no-mathjax"
}
});
</script>
Then your page would be
<html>
<head>
...
</head>
<body class="no-mathjax">
...
<div class="mathjax">
... (math goes here) ...
</div>
...
</body>
</html>
Hope that helps.
Davide
Credit: #MarkS.Everitt
http://www.mathjax.org/docs/1.1/options/tex2jax.html
There is a configuration option, processClass: "tex2jax_process"
The final configuration becomes:
tex2jax: {
inlineMath: [['$','$'], ['\\(','\\)']],'
ignoreClass: "[a-zA-Z1-9]*",
processClass: "math"
}
});
The existing answers are IMO not real solutions because they involve modifying your HTML. Sometimes this isn't even possible, but even when it is, who wants to dirty their markup with meaningless CSS classes just to get MathJax working?
Insert the following tag before the <script> tag that imports MathJax:
<script type="text/x-mathjax-config">
MathJax.Hub.Config(
{
elements: mathElements
}
);
</script>
where mathElements contains a list of DOM elements to be processed, for example something like var mathElements = document.querySelectorAll("article").

Is there a simple way to embed a MathJax formula to webpage?

If MathJax can export formula as image, I can use to insert it to a webpage easily. Unfortunately, current MathJax don't support to export image! :(
Is there a simple way to create a embeded code to show formula just like Twitter above? If you have, could you show me some sample codes? Thanks!
< href="https://twitter.com/share" class="twitter-share-button" data-count="horizontal" data-via="my">Tweet
< script type="text/javascript" src="//platform.twitter.com/widgets.js">
See my response to this question on the MathJax user's forum.
MathJax does not have image creation capabilities, and I don't know of a way to
make that possible from Javascript (a quick web search suggests it is not readily doable).
If you are looking to convert TeX to images, there are plenty of tools for doing that
already. You could, for example, use TeX with dvipng, or one of the tools designed for
that like the LaTeX Equation Editor or Laeqed applications. There are a number of
on-line tools for doing this as well.
This question is already kinda old. But was searching for something like this myself. Apparently there are some Tex Rendering Services Available.
Take a look at this Answer:
https://meta.stackexchange.com/questions/53436/implement-an-api-call-to-display-latex-as-inline-image
Try this
<html>
<head>
<script type="text/javascript" async src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-MML-AM_CHTML">
</script>
</head>
<body>
$$e = mc^2$$
</body>
</html>
http://jsfiddle.net/16h1hjot

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