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 00:40Z

∑_{k=1}^{n} k = n(n+1)/2

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

168K

det| 10 2 ; 3 11 | = 104

446K

3x² + 3x + 6 = 0

∫₀^∞ e^(-x²) dx = √π / 2

144K

12y² + 5y + 7 = 0

371K

∇²t = 0

iħ ∂ψ/∂t = Ĥψ

259K

\lim_{α\to 0} \frac{\sin α}{α} = 1

86K

F = G m₁m₂ / r²

224K

∑_{k=1}^{n} k = n(n+1)/2

234K

11ψ² + 6ψ + 2 = 0

218K

det| 9 4 ; 1 10 | = 86

354K

8θ² + 8θ + 6 = 0

70K