Mathematical notation can change to fit the problem. Sometimes a paper will introduce its own notation to make the description clearer. If I was to pick a prog

Mathematical notation can change to fit the problem. Sometimes a paper will introduce its own notation to make the description clearer. If I was to pick a programming language most like mathematical notation I would go for lisp. You define the language to suit the problem. A nice example is the Wikipedia page on least squares: https://en.wikipedia.org/wiki/Least_squares#Problem_statement https://en.wikipedia.org/wiki/Least_squares#Problem_statemen... Everything is concisely described provided that you know the notation for calculus and summation. One definition builds on the previous.