Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:05Z
∑_{k=1}^{n} k = n(n+1)/2
det| 9 4 ; 1 10 | = 86
168K
3x² + 3x + 6 = 0
∇²t = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
259K
det| 2 8 ; 7 3 | = -50
218K
∑_{k=1}^{n} k = n(n+1)/2
354K
det| 11 9 ; 0 12 | = 132
70K