.. _extending: ================ Extending Theano ================ This advanced tutorial is for users who want to extend Theano with new Types, new Operations (Ops), and new graph optimizations. Along the way, it also introduces many aspects of how Theano works, so it is also good for you if you are interested in getting more under the hood with Theano itself. Before tackling this more advanced presentation, it is highly recommended to read the introductory :ref:`Tutorial`. The first few pages will walk you through the definition of a new :ref:`type`, ``double``, and a basic arithmetic :ref:`operations ` on that Type. We will start by defining them using a Python implementation and then we will add a C implementation. .. toctree:: fibby pipeline theano_vs_c graphstructures type op inplace other_ops ctype cop optimization tips unittest extending_faq