Subsetting 2D NumPy Arrays If your 2D numpy array has a regular structure, i.e. each row and column has a fixed number of values, complicated ways of subsetting become very easy.

I want to plot a numpy 2d-array (i.e. an image), in the simplest way possible, with NO axes, whitespace, or any such thing. This should be the SIMPLEST use-case, and yet....It seems to be really hard.

And, all of NumPy’s operations take place outside the Python runtime, so they aren’t constrained by Python’s limitations. Using NumPy for array and matrix math in Python ...

NumPy is known for being fast, but could it go even faster? Here’s how to use Cython to accelerate array iterations in NumPy. NumPy gives Python users a wickedly fast library for working with ...