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 00:52Z

∑_{k=1}^{n} k = n(n+1)/2

\lim_{α\to 0} \frac{\sin α}{α} = 1

168K

1n² + 7n + 3 = 0

446K

3x² + 3x + 6 = 0

det| 7 4 ; 4 8 | = 40

144K

11z² + 3z + 4 = 0

371K

∇²t = 0

∑_{k=1}^{n} k = n(n+1)/2

259K

∑_{k=1}^{n} k = n(n+1)/2

86K

7z² + 2z + 0 = 0

iħ ∂ψ/∂t = Ĥψ

224K

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

234K

det| 4 2 ; 5 5 | = 10

1θ² + 2θ + 6 = 0

218K

N₂ + 3H₂ ⇌ 2NH₃

354K

2H₂ + O₂ → 2H₂O