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    16 July 2024

    • curprev 21:5521:55, 16 July 2024Mdpowell talk contribs 349 bytes +349 This is an introduction to tensors written in APL. Einstein notation is slick. It's compact and powerful. In that regard, it has much in common with APL. This introduction starts with the notion of fields and coordinate transformations and carries through to the generalized covariant derivative.