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

12α² + 6α + 7 = 0

168K

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

446K

3x² + 3x + 6 = 0

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

144K

det| 11 5 ; 0 12 | = 132

371K

∇²t = 0

det| 3 1 ; 7 4 | = 5

259K

ω = 2πf

86K

7z² + 2z + 0 = 0

d/dφ [φ^1] = 1φ^0

224K

∂α/∂r = 8α

234K

∑_{k=1}^{n} k = n(n+1)/2

218K

det| 9 4 ; 1 10 | = 86

354K