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 00:17Z

∑_{k=1}^{n} k = n(n+1)/2

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

168K

∑_{k=1}^{n} k = n(n+1)/2

446K

3x² + 3x + 6 = 0

∫₀^∞ e^(-ω²) dω = √π / 2

144K

∇²z = 0

371K

∇²t = 0

8ψ² + 7ψ + 0 = 0

259K

iħ ∂ψ/∂t = Ĥψ

86K

7z² + 2z + 0 = 0

∇ × E = −∂B/∂t

224K

CaCO₃ → CaO + CO₂

234K

det| 4 2 ; 5 5 | = 10

det| 12 9 ; 5 13 | = 111

218K

F = G m₁m₂ / r²

354K

N₂ + 3H₂ ⇌ 2NH₃

70K