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The "notation-thingy" using kronecker delta, levi-civita and etc to simplify expressions with div, grad, curl (i took the course in my native language so i am not entirely sure what the notation or technique is called in english).

Looking to get a good and thorough book on suffix notation as it is something i would like to revisit to learn properly. Sadly, the book we used for vector calculus only have 1 page on it and emphasis were on "using" the nabla operator when simplifying expressions, which did the trick, but i found suffix notation more compact and elegant as well as i feel like it will be more useful later on when you get to tensors and so on.

Any recommendations?

Oh, and my "math level" is basically up to vector calculus.