Data manipulation in Python is nearly synonymous with NumPy array manipulation: even newer tools like Pandas (Chapter 3) are built around the NumPy array. ... <看更多>

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Never append to numpy arrays in a loop: it is the one operation that NumPy is very bad at compared with basic Python. ... <看更多>

Composable transformations of Python+NumPy programs: differentiate, vectorize, ... It has the familiar semantics of mapping a function along array axes, ... ... <看更多>