I just said pliny was amazing, fwiw - i like that hes hacking on these and posts about it. I rushed to defend, i wish more people were taking old school anarchist cookbook approaches to these things
You can specify symmetry/antisymmetry patterns for tensor index slots and it takes advantage of that to speed up the calculations. This part was pretty important for me so i spent some time thinking about it. I wanted to try to put xACT’s patterns in but it would have been quite the undertaking.
Not rigorous, but intuition derived from expression string complexity for postfix operations vs standard sympy style. I’ll take this out, readme was written from sleazy used car salesman advertising point of view. Was more rigorous in examples/test