Using NumPy for array and matrix math in Python Many mathematical operations, especially in machine learning or data science , involve working with matrixes , or lists of numbers.

If you are doing matrix-based or array-based math and you don’t want the Python interpreter getting in the way, use NumPy. By drawing on C libraries for the heavy lifting, NumPy offers faster ...

Arrays in Python give you a huge amount of flexibility for storing, organizing, and accessing data. This is crucial, not least because of Python’s popularity for use in data science.