Fully functional implementations of neural-network algorithms, in Python, using: Theano, Tensorflow and Keras.

Theano:
pip install --upgrade --no-deps git+git://github.com/Theano/Theano.git

Tensorflow:
TensorFlow is an open source software library for high performance numerical computation. Its flexible architecture allows easy deployment of computation across a variety of platforms (CPUs, GPUs, TPUs), and from desktops to clusters of servers to mobile and edge devices.
Install Tensorflow from the website: https://www.tensorflow.org/versions/r0.12/get_started/os_setup.html

Keras:
pip install --upgrade keras

1. Introduction
   1.1 Hello World with Tensorflow
   1.2 Addition of Two Numbers (Constants)