Raspberry Pi's Python course teaches young coders how to use variables, loops, and functions to create interactive projects. Image: SolStock/GETTY.

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.

Pi Day is a holiday for math (and pie) enthusiasts to celebrate their love of numbers. And this year marks a once-in-a-century occurrence. Saturday at 9:26:53 a.m. the date and time will read 3.14 ...