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Exercise 6: Broadcasting and Slicing

The goal of this exercise is to learn to access values of n-dimensional arrays efficiently.

  1. Create an 2-dimensional array size 9,9 of 1s. Each value has to be an int8.

  2. Using slicing, output this array:

    array([[1, 1, 1, 1, 1, 1, 1, 1, 1],
    [1, 0, 0, 0, 0, 0, 0, 0, 1],
    [1, 0, 1, 1, 1, 1, 1, 0, 1],
    [1, 0, 1, 0, 0, 0, 1, 0, 1],
    [1, 0, 1, 0, 1, 0, 1, 0, 1],
    [1, 0, 1, 0, 0, 0, 1, 0, 1],
    [1, 0, 1, 1, 1, 1, 1, 0, 1],
    [1, 0, 0, 0, 0, 0, 0, 0, 1],
    [1, 1, 1, 1, 1, 1, 1, 1, 1]], dtype=int8)

https://jakevdp.github.io/PythonDataScienceHandbook/ (section: Computation on Arrays: Broadcasting)