3 ms·field, group...by ecesena 10y agofield, group...drauh 10y agoAll I know about tensors is this: https://upload.wikimedia.org/math/8/7/2/87202e291e05ddf490490a84c451e47c.png https://upload.wikimedia.org/math/8/7/2/87202e291e05ddf49049...