Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 16:10Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
320K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
144K
det| 8 9 ; 3 9 | = 45
E = mc²
det| 9 4 ; 1 10 | = 86
29K
∑_{k=1}^{n} k = n(n+1)/2
211K
det| 2 4 ; 4 3 | = -10
390K