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 06:48Z

det| 3 9 ; 6 4 | = -42

det| 5 9 ; 7 6 | = -33

168K

6n² + 7n + 6 = 0

446K

∑_{k=1}^{n} k = n(n+1)/2

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

144K

det| 7 4 ; 4 8 | = 40

371K

2z² + 2z + 5 = 0

∑_{k=1}^{n} k = n(n+1)/2

259K

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

86K

iħ ∂ψ/∂t = Ĥψ

\lim_{t\to 0} \frac{\sin t}{t} = 1

224K

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

234K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

218K

N₂ + 3H₂ ⇌ 2NH₃

354K