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 00:12Z

∑_{k=1}^{n} k = n(n+1)/2

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

168K

det| 9 4 ; 1 10 | = 86

446K

3x² + 3x + 6 = 0

det| 7 6 ; 1 8 | = 50

144K

iħ ∂ψ/∂t = Ĥψ

371K

∇²t = 0

∂β/∂z = 1β

259K

8x² + 2x + 7 = 0

86K

7z² + 2z + 0 = 0

iħ ∂ψ/∂t = Ĥψ

224K

∫₀^∞ e^(-n²) dn = √π / 2

234K

∑_{k=1}^{n} k = n(n+1)/2

218K

iħ ∂ψ/∂t = Ĥψ

354K

F = G m₁m₂ / r²

70K