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 00:59Z

∑_{k=1}^{n} k = n(n+1)/2

Fe₂O₃ + 3CO → 2Fe + 3CO₂

168K

∂z/∂ψ = 1z

446K

3x² + 3x + 6 = 0

det| 4 7 ; 2 5 | = 6

144K

\lim_{β\to 0} \frac{\sin β}{β} = 1

371K

∇²t = 0

∇ × E = −∂B/∂t

259K

∑_{k=1}^{n} k = n(n+1)/2

86K

7z² + 2z + 0 = 0

N₂ + 3H₂ ⇌ 2NH₃

224K

det| 7 4 ; 4 8 | = 40

234K

9ψ² + 7ψ + 3 = 0

218K