SciPy : http://www.netlib.org/
Broadcasting : http://docs.scipy.org/doc/numpy/user/basics.broadcasting.html
Vectorize : http://docs.scipy.org/doc/numpy/reference/generated/numpy.vectorize.html
Sum (axis = ) : http://docs.scipy.org/doc/numpy/reference/generated/numpy.sum.html
Misc : https://chintaksheth.wordpress.com/2013/07/31/numpy-the-tricks-of-the-trade-part-ii/ http://www.scipy.org/scipylib/faq.html (npy format ?)