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 00:14Z

∑_{k=1}^{n} k = n(n+1)/2

∂γ/∂θ = 2γ

168K

∑_{k=1}^{n} k = n(n+1)/2

446K

3x² + 3x + 6 = 0

det| 2 3 ; 5 3 | = -9

144K

det| 12 2 ; 2 13 | = 152

371K

∇²t = 0

\lim_{α\to 0} \frac{\sin α}{α} = 1

259K

e^{i\pi} + 1 = 0

86K

7z² + 2z + 0 = 0

\oint_C \vec{F}\cdot d\vec{r} = 0

224K

det| 9 4 ; 1 10 | = 86

234K

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

218K

det| 3 6 ; 0 4 | = 12

354K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

70K