Darius Fang is an undergraduate student in Computer Engineering. He has developed Python code tutorial as well as a YOLO3 algorithm. The book can be found here. He has contributed in converting notes to digital for the Advanced Dynamics and Vibrations book, and revising notes for the vibrations and sounds book. Darius has been converting mathematica code to the python equivalent for solid mechanics, using libraries such as Numpy, Sympy, Matplotlib, etc. Darius has also formatted material for Introduction to Engineering Economics.