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 00:02Z

∑_{k=1}^{n} k = n(n+1)/2

∇²β = 0

168K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

446K

3x² + 3x + 6 = 0

\lim_{x\to 0} \frac{\sin x}{x} = 1

144K

9ψ² + 7ψ + 3 = 0

371K

∇²t = 0

N₂ + 3H₂ ⇌ 2NH₃

259K

∑_{k=1}^{n} k = n(n+1)/2

86K

7z² + 2z + 0 = 0

∂y/∂n = 5y

224K

10ω² + 7ω + 4 = 0

234K

det| 4 2 ; 5 5 | = 10

det| 7 4 ; 4 8 | = 40

218K

∇ × E = −∂B/∂t

354K

2H₂ + O₂ → 2H₂O

C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂

70K

iħ ∂ψ/∂t = Ĥψ