https://cppcon.org/ https://github.com/CppCon/CppCon2020/blob/main/Presentations/the_shapes_of_multidimensional_arrays/the_shapes_of_multidimensional_arrays__vincent_reverdy__cppcon_2020.pdf

In 2020, linear algebra is still not a part of standard C++. Worse than that, beyond the good old C-style multidimensional arrays, the standard library still does not provide modern tools to handle such objects. In the era of machine learning and artificial intelligence, this is starting to get embarrassing. …