[IPython-User] questions about latex rendering in ipython with sympy

Aaron Meurer asmeurer@gmail....
Tue Jan 10 03:51:45 CST 2012

If I understand the question correctly, he is not using the sympy
profile, which enables mathjax output, but just the regular SymPy
pretty printing.  Correct me if I am wrong.

To enable MathJax printing, load the notebook with --profile=sympy.
This will also import all of sympy and define common symbols, like
isympy.  I think there's a way to do this without the profile, but the
IPython guys will have to comment on how to do that. I know you can
import display from IPython.core.display and use that, but I don't
know if there's some magic to set the display hook to that for you.

We do plan to implement this in sympy so you can just do
init_printing() from within the notebook and it will enable the LaTeX
printing with MathJax by default (the same in the qtconsole). See
http://code.google.com/p/sympy/issues/detail?id=2945.  We also plan to
implement isympy -c qtconsole and isympy -c notebook, which will do
roughly the equivalent of ipython notebook --profile=sympy
(http://code.google.com/p/sympy/issues/detail?id=2632).  But it hasn't
been done yet (patches welcome :)

Aaron Meurer

On Mon, Jan 9, 2012 at 7:41 PM, Fernando Perez <fperez.net@gmail.com> wrote:
> Hi,
> On Mon, Jan 9, 2012 at 6:27 PM, Comer Duncan <comer.duncan@gmail.com> wrote:
>> Hi,
>> I am a recent user who wants to use ipython .12 to write notebooks.  I have
>> ipython installed and working on my macbook pro.  I am beginning to write a
>> notebook and like very much the flexibility it allows. Thanks to the
>> developers.
>> The notebook I am working on uses sympy.  I note that the sympy example
>> renders equations.  However, in my humble view the quality of the rendered
>> equations is minimal.  Mathjax does a much better job I think.  I have
>> cribbed the sympy example as a starter for building the notebook.  I am
>> wondering whether ipython works with CDN Mathjax rather than the currently
>> working (but not particularly pretty) equation renderings used in ipython?
>>  I have a separate blog which uses Mathjax and like its features.
>> Thanks for any help you can provide.  Sorry for the primitive nature of my
>> concerns!
> I'm sorry but I'm not sure what can be going on, as the notebook does
> use mathjax to render its equations as well.  The sympy objects simply
> return a latex expression that is put into html, and we let mathjax
> finish rendering it.  So I don't quite understand what differences you
> are seeing between the rendering of the notebook and mathjax output
> elsewhere.
> Perhaps a screenshot of the rendering you consider sub-par would help
> us figure it out.
> best
> f
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