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 00:06Z

∑_{k=1}^{n} k = n(n+1)/2

\frac{8}{6} \sum_{i=1}^{n} i^{2}

168K

det| 9 5 ; 1 10 | = 85

446K

3x² + 3x + 6 = 0

7r² + 8r + 5 = 0

144K

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

371K

∇²t = 0

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

259K

\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

86K

∇ × E = −∂B/∂t

224K

8ψ² + 7ψ + 0 = 0

234K