Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:16Z
∑_{k=1}^{n} k = n(n+1)/2
det| 3 6 ; 0 4 | = 12
168K
3x² + 3x + 6 = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
144K
∇²t = 0
7z² + 2z + 0 = 0
det| 5 3 ; 7 6 | = 9
224K
det| 7 9 ; 1 8 | = 47
234K