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 00:13Z

∑_{k=1}^{n} k = n(n+1)/2

F = G m₁m₂ / r²

168K

∑_{k=1}^{n} k = n(n+1)/2

446K

3x² + 3x + 6 = 0

d/dx [x^9] = 9x^8

144K

det| 5 3 ; 7 6 | = 9

371K

∇²t = 0

iħ ∂ψ/∂t = Ĥψ

259K

det| 7 4 ; 4 8 | = 40

86K

7z² + 2z + 0 = 0

∇ × E = −∂B/∂t

224K

∇ × E = −∂B/∂t

234K

det| 4 2 ; 5 5 | = 10

\frac{3}{2} \sum_{i=1}^{n} i^{2}

218K

CH₄ + 2O₂ → CO₂ + 2H₂O

354K

2H₂ + O₂ → 2H₂O

∇²t = 0

70K