问题
The problem I have is that I have an IPython notebook with some formulas written in MathJax. It is rendered fine in the notebook itself, but when I try to export it, most of my formula is gone!
Here's a small reproducible example:
I type
$ \int \cfrac{ 2 p(\vec{x}) d\vec{x}} { \frac{1}{P(\omega_1 | \vec{x})} + \frac{1}{P(\omega_2 | \vec{x})} }$
It renders well inside the notebook:
But when I click file -> print preview, what I get is just a lonely plus sign:
In the sources I see this:
<p>$ { + }$</p>
So the entire formula is gone! What could be the reason?
My environment:
- Windows 7
- Anaconda-2.0.1-Windows-x86_64
- Python 2.7.7
- IPython 2.3.0
- pandoc 1.13.1
回答1:
In pandoc you require a non-space character after the opening dollar and a non-space chacter before the closing dollar.
From the documentation
Anything between two $ characters will be treated as TeX math. The opening $ must have a character immediately to its right, while the closing $ must have a character immediately to its left. Thus, $20,000 and $30,000 won’t parse as math. If for some reason you need to enclose text in literal $ characters, backslash-escape them and they won’t be treated as math delimiters.
来源：https://stackoverflow.com/questions/26464819/pandoc-ipython-notebook-loses-some-mathjax