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 00:51Z

∑_{k=1}^{n} k = n(n+1)/2

∇ × E = −∂B/∂t

168K

iħ ∂ψ/∂t = Ĥψ

446K

3x² + 3x + 6 = 0

∇²γ = 0

144K

d/dt [t^3] = 3t^2

371K

∇²t = 0

Fe₂O₃ + 3CO → 2Fe + 3CO₂

259K

1n² + 7n + 3 = 0

86K

AgNO₃ + NaCl → AgCl↓ + NaNO₃

224K

∇²θ = 0

234K

det| 12 1 ; 5 13 | = 151

218K

8ψ² + 7ψ + 0 = 0

354K

\oint_C \vec{F}\cdot d\vec{r} = 0

70K

d/dx [x^3] = 3x^2

402K