Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:12Z
∑_{k=1}^{n} k = n(n+1)/2
CH₄ + 2O₂ → CO₂ + 2H₂O
168K
3x² + 3x + 6 = 0
det| 11 4 ; 5 12 | = 112
144K
∇²t = 0
det| 7 4 ; 4 8 | = 40
86K
7z² + 2z + 0 = 0
det| 4 2 ; 5 5 | = 10