I claim that even in the math of machine learning, many of the symbols presented do not mechanically translate as such. Other commenters have discussed differin

I claim that even in the math of machine learning, many of the symbols presented do not mechanically translate as such. Other commenters have discussed differing notational conventions, but even to assume that x_i is indexing some real numbers is memory is often too much. I’m not saying there isn’t any value showing somebody how an elementary summation corresponds to a for-loop. I am saying it’s a lot more than that, though.