This is crucial, not least because of Python’s popularity for use in data science. But what precisely is an array? And how do you use arrays in Python? An array is a way to store multiple values ...

Matrix factorization is a process of decomposing a large and complex matrix into smaller and simpler matrices that capture the essential information and relationships in the original matrix.

so it’s tempting to use common Python metaphors for working with them. If we wanted to create a NumPy array with the numbers 0-1000, we could in theory do this: x = np.array([_ for _ in range ...