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 04:17Z

12r² + 6r + 1 = 0

7φ² + 3φ + 6 = 0

168K

∫₀^∞ e^(-z²) dz = √π / 2

446K

∑_{k=1}^{n} k = n(n+1)/2

det| 7 4 ; 4 8 | = 40

144K

∑_{k=1}^{n} k = n(n+1)/2

371K

4t² + 9t + 6 = 0

∇²β = 0

259K

det| 2 6 ; 0 3 | = 6

86K

∇²ψ = 0

CaCO₃ → CaO + CO₂

224K

N₂ + 3H₂ ⇌ 2NH₃

234K

\binom{n}{k} = \frac{n!}{k!(n-k)!}

218K

\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

354K

λ = h/p

70K

∇ × E = −∂B/∂t

402K