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 00:09Z

∑_{k=1}^{n} k = n(n+1)/2

\frac{8}{7} \sum_{i=1}^{n} i^{2}

168K

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

446K

3x² + 3x + 6 = 0

2H₂ + O₂ → 2H₂O

144K

det| 3 6 ; 0 4 | = 12

371K

∇²t = 0

8ψ² + 7ψ + 0 = 0

259K

det| 6 6 ; 5 7 | = 12

86K

7z² + 2z + 0 = 0

∇ × E = −∂B/∂t

224K

∑_{k=1}^{n} k = n(n+1)/2

234K

det| 4 2 ; 5 5 | = 10