Physics, Data Science, Least Squares, Chemometrics, Spectroscopy.
https://dataaspirant.com/2015/04/11/five-most-popular-similarity-measures-implementation-in-python/ [4] Zico Kolter, Chuong Do (September 30, 2015). Linear Algebra Review and Reference notes. http://cs229.stanford.edu/section/cs229-linalg.pdf [5] Kramer, R. (1998). Chemometric techniques for