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 00:30Z

∑_{k=1}^{n} k = n(n+1)/2

8ψ² + 7ψ + 0 = 0

168K

7r² + 8r + 5 = 0

446K

3x² + 3x + 6 = 0

∇ × E = −∂B/∂t

144K

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

371K

∇²t = 0

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

259K

9θ² + 7θ + 4 = 0

86K

7z² + 2z + 0 = 0

Fe₂O₃ + 3CO → 2Fe + 3CO₂

224K

11z² + 3z + 4 = 0

234K

det| 4 2 ; 5 5 | = 10

9α² + 6α + 0 = 0

218K

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

354K

2H₂ + O₂ → 2H₂O

iħ ∂ψ/∂t = Ĥψ