From https://web.math.princeton.edu/~weinan/ICML.pdf https://mml-book.github.io/book/mml-book.pdf https://www.khanacademy.org/math/old-differential-calculus/derivative-applications-dc/optimization-dc/v/minimizing-sum-of-squares https://www.youtube.com/playlist?list=PLiiljHvN6z193BBzS0Ln8NnqQmzimTW23 https://www.geeksforgeeks.org/machine-learning-mathematics/