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 04:14Z

12r² + 6r + 1 = 0

Fe₂O₃ + 3CO → 2Fe + 3CO₂

168K

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

446K

∑_{k=1}^{n} k = n(n+1)/2

∑_{k=1}^{n} k = n(n+1)/2

144K

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

371K

4t² + 9t + 6 = 0

N₂ + 3H₂ ⇌ 2NH₃

259K

det| 9 5 ; 1 10 | = 85

86K

∇²ψ = 0

6r² + 3r + 1 = 0

224K

∂β/∂z = 1β

234K

F = ma

det| 7 4 ; 4 8 | = 40

218K

CaCO₃ → CaO + CO₂

det| 4 8 ; 7 5 | = -36