Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:54Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
168K
3x² + 3x + 6 = 0
CH₄ + 2O₂ → CO₂ + 2H₂O
144K
det| 6 6 ; 5 7 | = 12
371K
∇²t = 0
7z² + 2z + 0 = 0
det| 5 3 ; 7 6 | = 9
224K
det| 7 9 ; 1 8 | = 47
234K
det| 7 4 ; 4 8 | = 40
218K