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.

Python integration with CUPS using Tea4CUPS; ... Like just about everything else that makes noise, someone will try to make music with dot matrix printers, too. Posted in Linux Hacks, ...

He calls it an LED matrix “Paint Toy” because one of the features he’s included lets the user create pixel art like in MS Paint. The 10×8 grid of lights is controlled by a PIC 16F877A.