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 06:53Z

det| 3 9 ; 6 4 | = -42

d/dt [t^3] = 3t^2

168K

N₂ + 3H₂ ⇌ 2NH₃

446K

∑_{k=1}^{n} k = n(n+1)/2

det| 9 4 ; 1 10 | = 86

144K

∑_{k=1}^{n} k = n(n+1)/2

371K

2z² + 2z + 5 = 0

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

259K

∇²β = 0

86K

iħ ∂ψ/∂t = Ĥψ

\oint_C \vec{F}\cdot d\vec{r} = 0

224K

8x² + 2x + 7 = 0

234K

∫₀^∞ e^(-t²) dt = √π / 2

2H₂ + O₂ → 2H₂O

det| 4 5 ; 7 5 | = -15

7r² + 7r + 5 = 0