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

∇²β = 0

168K

∫₀^∞ e^(-z²) dz = √π / 2

446K

3x² + 3x + 6 = 0

det| 7 4 ; 4 8 | = 40

144K

F = G m₁m₂ / r²

371K

∇²t = 0

det| 9 5 ; 1 10 | = 85

259K

11t² + 9t + 5 = 0

86K

7z² + 2z + 0 = 0

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

224K

∇ × E = −∂B/∂t

234K

∂ψ/∂β = 3ψ

218K

iħ ∂ψ/∂t = Ĥψ

354K

det| 7 7 ; 4 8 | = 28

70K

∑_{k=1}^{n} k = n(n+1)/2

402K