Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:53Z
∑_{k=1}^{n} k = n(n+1)/2
det| 2 7 ; 7 3 | = -43
168K
det| 3 1 ; 7 4 | = 5
446K
3x² + 3x + 6 = 0
∇²t = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
86K
∑_{k=1}^{n} k = n(n+1)/2
234K
det| 12 1 ; 5 13 | = 151
218K
det| 9 4 ; 1 10 | = 86
354K