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 04:04Z

12r² + 6r + 1 = 0

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

168K

∑_{k=1}^{n} k = n(n+1)/2

446K

∑_{k=1}^{n} k = n(n+1)/2

∫₀^∞ e^(-ω²) dω = √π / 2

144K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

371K

4t² + 9t + 6 = 0

∑_{k=1}^{n} k = n(n+1)/2

259K

det| 7 4 ; 4 8 | = 40

86K

∇²ψ = 0

d/dψ [ψ^7] = 7ψ^6

224K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

234K

F = ma

iħ ∂ψ/∂t = Ĥψ

218K

∇²β = 0

354K

N₂ + 3H₂ ⇌ 2NH₃

70K