I used this recently when I was relearning NN theory (last time I looked at it before 2015 was the late 90's,) and I agree. It's a thorough walkthrough of the

I used this recently when I was relearning NN theory (last time I looked at it before 2015 was the late 90's,) and I agree. It's a thorough walkthrough of the math that turned the lightbulbs back on enough for me to write a simple swift MLP NN without consulting other implementations.