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 00:17Z

∑_{k=1}^{n} k = n(n+1)/2

N₂ + 3H₂ ⇌ 2NH₃

168K

3z² + 5z + 1 = 0

446K

3x² + 3x + 6 = 0

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

144K

det| 7 4 ; 4 8 | = 40

371K

∇²t = 0

Fe₂O₃ + 3CO → 2Fe + 3CO₂

259K

2H₂ + O₂ → 2H₂O

86K

∫₀^∞ e^(-t²) dt = √π / 2

224K

7r² + 8r + 5 = 0

234K

det| 12 1 ; 5 13 | = 151

218K

∑_{k=1}^{n} k = n(n+1)/2

354K

PV = nRT

70K

d/dx [x^3] = 3x^2

402K