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 00:29Z

∑_{k=1}^{n} k = n(n+1)/2

12θ² + 2θ + 6 = 0

168K

3r² + 2r + 0 = 0

446K

3x² + 3x + 6 = 0

iħ ∂ψ/∂t = Ĥψ

144K

8ψ² + 7ψ + 0 = 0

371K

∇²t = 0

2n² + 4n + 0 = 0

259K

det| 2 7 ; 7 3 | = -43

86K

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

224K

∑_{k=1}^{n} k = n(n+1)/2

234K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

218K

∇ × E = −∂B/∂t

354K

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

70K

d/dφ [φ^1] = 1φ^0

402K