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 00:20Z

∑_{k=1}^{n} k = n(n+1)/2

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

168K

11t² + 9t + 5 = 0

446K

3x² + 3x + 6 = 0

CaCO₃ → CaO + CO₂

144K

det| 11 9 ; 0 12 | = 132

371K

∇²t = 0

F = G m₁m₂ / r²

259K

∂y/∂n = 5y

86K

7z² + 2z + 0 = 0

iħ ∂ψ/∂t = Ĥψ

224K

\frac{4}{9} \sum_{i=1}^{n} i^{2}

234K

E = mc²

218K

det| 9 8 ; 3 10 | = 66

354K

det| 9 4 ; 1 10 | = 86

70K