.. _codes:

Code and notebooks
==================

Matlab scripts to accompany the book 
------------------------------------

See `the book webpage <http://faculty.washington.edu/rjl/fdmbook/>`_

Jupyter notebooks
-----------------

You can view notebooks posted on the web online
via `nbviewer <http://nbviewer.ipython.org/>`_.  (Check out this link and
also the `gallery
<https://github.com/ipython/ipython/wiki/A-gallery-of-interesting-IPython-Notebooks>`_
for lots of cool examples of notebooks and books/papers written in this format.)

To view the notebooks for this class, you can now view them directly on the GitHub
webpages at https://github.com/rjleveque/amath586s2019/tree/master/notebooks.
This shows the notebook as it was last committed to the repository, which might or
might not include the output cells. (Often I delete the output before committing,
particularly if there are lots of figures.)  At any rate you won't be able to change
anything or execute the notebook.

html versions of a few notebooks can also be viewed at these links:

 - `Pendulum_ForwardEuler.html <_static/Pendulum_ForwardEuler.html>`_
 - `HeatEquation.html <_static/HeatEquation.html>`_
 - `Advection.html <_static/Advection.html>`_
 - `Leapfrog_outflow.html <_static/Leapfrog_outflow.html>`_

If you want to modify something in a notebook and re-execute, you will need
to download the notebook (or find it in the :ref:`class_repos`, in the `notebooks`
directory).

You will need a recent version of Jupyter in order to run a `Jupyter
notebook <http://jupyter-notebook.readthedocs.org/en/latest/>`_.
See :ref:`software`.

If you want to easily run notebooks without installing any software, you
might try `CoCalc <http:www.cocalc.com>`_.

**New:** You can also run notebooks from this class repository in the cloud using 
`binder <http://mybinder.org>`_.  To do so, simply |binder_link|.
This will open a new tab and then might take a minute to start up a kernel, after
which you should see an index of notebooks.

.. |binder_link| raw:: html

   <a href="http://mybinder.org/repo/rjleveque/amath586s2019" target="_blank">launch binder</a>


Recall that you can select `Run All` from the `Cell` menu to execute the entire
notebook and see all the output.