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 00:26Z

∑_{k=1}^{n} k = n(n+1)/2

∑_{k=1}^{n} k = n(n+1)/2

168K

∫₀^∞ e^(-z²) dz = √π / 2

446K

3x² + 3x + 6 = 0

iħ ∂ψ/∂t = Ĥψ

144K

8ψ² + 7ψ + 0 = 0

371K

∇²t = 0

det| 10 7 ; 3 11 | = 89

259K

∇²t = 0

86K

7z² + 2z + 0 = 0

2H₂ + O₂ → 2H₂O

224K

N₂ + 3H₂ ⇌ 2NH₃

234K

12γ² + 9γ + 1 = 0

218K

\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

354K

∂α/∂r = 8α

70K

PV = nRT

402K