Learn how to create, index, slice, reshape, and perform arithmetic operations on arrays using NumPy, the most popular Python library for data science.

Python is convenient and flexible, yet notably slower than other languages for raw computational speed. The Python ecosystem has compensated with tools that make crunching numbers at scale in ...

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If an array has 10 elements then the last number will be 9 (0-9). ... Arrays in Python differ from other programming languages as it uses lists instead of arrays.