print(np.zeros((3, 2))) # 3x2 array of 0.0 # np.ones() — array filled with 1.0 print("\nnp.ones()") print(np.ones(3)) # [1. 1. 1.] print(np.ones((5, 2))) # 5x2 ...

These are my go-to libraries for Python data crunching.

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Every Python developer knows some or all of these libraries, because they’re stable, reliable, and excellent at what they do.

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