Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-21 04:19Z
∇²α = 0
det| 11 2 ; 5 12 | = 122
148K
det| 6 7 ; 2 7 | = 28
∑_{k=1}^{n} k = n(n+1)/2
122K
2H₂ + O₂ → 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
291K
\frac{1}{4} \sum_{i=1}^{n} i^{2}
det| 3 1 ; 0 4 | = 12