As far as I know, this notation and terminology is still very standard.
In some ways I like the idea of replacing traditional indexing with something more like the Einstein summation notation, and moving away from the arbitrary feeling that you get around how matrix multiplication is structured, and provide an immediate route into tensor theory.
But so many things that are very important in linear algebra, like matrix inverses, are awkward to express in this notation.
In some ways I like the idea of replacing traditional indexing with something more like the Einstein summation notation, and moving away from the arbitrary feeling that you get around how matrix multiplication is structured, and provide an immediate route into tensor theory.
But so many things that are very important in linear algebra, like matrix inverses, are awkward to express in this notation.