Σ index Eq pack 19 Rxn set 20 Rxn set 26 Σ#24 Σ#12 Ledger /21 Eq pack 13 Ledger /3 Eq pack 1 Batch 16 Σ#18 Σ#6 Ledger /15 Batch 4

Field Notes / Σ /sym/3cad98

id=1 · host=formula-vault.cloud · 2026-10-20 00:04Z

∑_{k=1}^{n} k = n(n+1)/2

2H₂ + O₂ → 2H₂O

168K

∑_{k=1}^{n} k = n(n+1)/2

446K

3x² + 3x + 6 = 0

∇ × E = −∂B/∂t

144K

det| 9 4 ; 1 10 | = 86

371K

∇²t = 0

N₂ + 3H₂ ⇌ 2NH₃

259K

\lim_{α\to 0} \frac{\sin α}{α} = 1

86K

7z² + 2z + 0 = 0

det| 7 6 ; 1 8 | = 50

224K

11ψ² + 6ψ + 2 = 0

234K

ΔS ≥ 0

218K

iħ ∂ψ/∂t = Ĥψ

354K

CaCO₃ → CaO + CO₂

70K