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

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

168K

det| 9 4 ; 1 10 | = 86

446K

3x² + 3x + 6 = 0

∑_{k=1}^{n} k = n(n+1)/2

144K

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

371K

∇²t = 0

11z² + 3z + 4 = 0

259K

\frac{2}{2} \sum_{i=1}^{n} i^{2}

86K

7z² + 2z + 0 = 0

det| 3 6 ; 0 4 | = 12

224K

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

234K

det| 4 2 ; 5 5 | = 10

11t² + 9t + 4 = 0

2H₂ + O₂ → 2H₂O