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 00:06Z

∑_{k=1}^{n} k = n(n+1)/2

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

168K

∇²t = 0

446K

3x² + 3x + 6 = 0

∇²θ = 0

144K

6r² + 3r + 1 = 0

371K

∇²t = 0

F = G m₁m₂ / r²

259K

det| 5 3 ; 7 6 | = 9

86K

7z² + 2z + 0 = 0

\lim_{γ\to 0} \frac{\sin γ}{γ} = 1

224K

d/dψ [ψ^7] = 7ψ^6

234K

det| 4 2 ; 5 5 | = 10

det| 7 4 ; 4 8 | = 40

218K

∫₀^∞ e^(-θ²) dθ = √π / 2

354K

∇ × E = −∂B/∂t

70K