Getting MathJax to work

[Aaron Meurer]

I am probably doing something stupid, but I can't seem to get MathJax to work in my blog. I have the basic MATHJAX_CONFIG in conf.py, but $math$ won't render. Any suggestions. My blog is at http://github.com/asmeurer/blog.

Aaron Meurer

[Damián Avila]

Your math expressions have the form $latex ...$, it seems that the "latex" prefix is the source of you problems... 

2014-03-30 14:33 GMT-03:00 Aaron Meurer <asme...@gmail.com>:

I am probably doing something stupid, but I can't seem to get MathJax to work in my blog. I have the basic MATHJAX_CONFIG in conf.py, but $math$ won't render. Any suggestions. My blog is at http://github.com/asmeurer/blog.

Aaron Meurer

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[Aaron Meurer]

The thing is, it worked at https://github.com/asmeurer/blog/tree/aa04c4308ac78ca4507897e3cd3cb2133c52157d/new_site. I can't figure out why, though. The posts are identical, except I now have a new markdown post, and I tried checking out that exact conf.py and using it, but still the math does not render. I also tried replacing all $latex with $.

The best example is this post http://asmeurer.github.io/blog/posts/2013/03/03/when-does-xlogy-ylogx/. The strange thing is that the math in the first line renders, but no other math does.

Aaron Meurer

[Aaron Meurer]

Consider http://asmeurer.github.io/blog/new_site/output/posts/2013/03/03/when-does-xlogy-ylogx.html, where the math is all rendering (that's just a halfhazard dump of the old thing I referenced, so some stuff won't work under the new_site url). 

Aaron Meurer

[Aaron Meurer]

Ah, I think there's a Sherlock Holmes quote about this. There really was only one thing different between that old site and the new one: the existence of a new Markdown post. I tried deleting this post, and it the math starts rendering again.

So this is obviously a bug. I am using the master branch of Nikola, though I also tried some old tags and it seems to be the same. 

To reproduce:

- Go to https://github.com/asmeurer/blog.  I am on 6bdc97fa556b34a80601ac84dd4dd714f1db6b53.

- nikola build

- Notice the math in output/posts/2013/03/03/when-does-xlogy-ylogx.html

- rm posts/moving-to-github-pages-with-nikola.m*

- nikola build

- Notice the math in the same page

Aaron Meurer

[Aaron Meurer]

https://github.com/getnikola/nikola/issues/1185

Aaron Meurer

[Damián Avila]

Yep, it seems a bug, open an issue at Github please ;-)

[Damián Avila]

Thanks!

[Aaron Meurer]

OK, so I've been playing around with just using MathJax in my Markdown posts. A few comments:

I had to search the code to figure out that to make mathjax work, you have to add "mathjax" to the metadata. It isn't documented. There should be a way to just enable it in conf.py. I want every post that I write to support MathJax. 

I can't get inline math to work with $math$. I figured out that \\(math\\) works, which I guess is a bug (it should require only one backslash). Both $$math$$ and \\[math\\] work for display math.

Aaron Meurer

[Damián Avila]

You are right, it has to be documented...

In my blog I modified the templates of my theme to load mathjax in all my post... but maybe an overall option inside conf.py could be a good solution... In general, we are conservative at the time to add new options inside conf.py... but now we have more math users... maybe it worth to have that option next to the MATHJAX_CONFIG option... 

And the inline math is probably a bug as you said...

[Thomas Mansencal]

Was the inline Mathjax issue fixed? I have a similar one with IPython Notebooks, they don't convert properly from Nikola, however invoking jupyter nbconvert from the command line produce a correct html output.

Cheers,

Thomas

[Chris Warrick]

On 3 December 2015 at 07:52, Thomas Mansencal

<thomas.m...@gmail.com> wrote:
> Was the inline Mathjax issue fixed? I have a similar one with IPython
> Notebooks, they don't convert properly from Nikola, however invoking jupyter
> nbconvert from the command line produce a correct html output.
>
> Cheers,
>
> Thomas

How do you use maths in your notebook? If you use $dollars$, you need
to change your mathjax config (a snippet is waiting to be uncommented
in conf.py). Otherwise, it should work just fine.

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Chris Warrick <https://chriswarrick.com/>
PGP: 5EAAEA16

[Thomas Mansencal]

Unfortunately snippets enabled or not, the inline mathjax is still not accounted for. The inline \\math\\ form doesn't work either. This is the snippet I use (default from current conf.py):

MATHJAX_CONFIG = """

<script type="text/x-mathjax-config">

MathJax.Hub.Config({

    tex2jax: {

        inlineMath: [ ['$','$'], ["\\\(","\\\)"] ],

        displayMath: [ ['$$','$$'], ["\\\[","\\\]"] ],

        processEscapes: true

    },

    displayAlign: 'left', // Change this to 'center' to center equations.

    "HTML-CSS": {

        styles: {'.MathJax_Display': {"margin": 0}}

    }

});

</script>

"""

Cheers,

Thomas

[Chris Warrick]

This is not an inline math form. Try this:

\(math\)

Which may need to be changed to:

\\(math\\)

in some circumstances (input format using backslash to escape things).
If you still experience problems, pastebin a broken .html output file and post the link here.

--
Chris Warrick <https://chriswarrick.com/>

Sent from my Galaxy S3.

--

[Thomas Mansencal]

Thanks Chris!

Using the form with parenthesis (the corrected one) seems to partially work: I'm facing problems with some latex constructs that fails even at the notebook level. This snippet illustrates the issue:

$M_{RED\rightarrow RGB}$, $M_{XYZ\rightarrow RGB}$ # Fine

\\(M_{RED\rightarrow RGB}\\), $M_{XYZ\rightarrow RGB}$ # Fine

\\(M_{RED\rightarrow RGB}\\), \\(M_{XYZ\rightarrow RGB}\\) # Broken

Here is my stack for info:

Server Information:

You are using Jupyter notebook.

The version of the notebook server is 4.0.6 and is running on:

Python 3.5.0 |Anaconda 2.4.0 (64-bit)| (default, Oct 19 2015, 21:57:25) 
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)]

Current Kernel Information:

Python 3.5.0 |Anaconda 2.4.0 (64-bit)| (default, Oct 19 2015, 21:57:25) 
Type "copyright", "credits" or "license" for more information.

IPython 4.0.0 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.
%guiref   -> A brief reference about the graphical user interface.

As this is likely an issue on Jupyter side, I'll raise an issue there and report.

Cheers,

Thomas

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