A Visual Intro to NumPy and Data Representation
Discussions: Hacker News (366 points, 21 comments), Reddit r/MachineLearning (256 points, 18 comments) Translations: Chinese 1, Chinese 2, Japanese The NumPy package is the workhorse of data analysis, machine learning, and scientific computing in the python ecosystem. It vastly simplifies manipulating and crunching vectors and matrices.