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 13:18Z

det| 11 7 ; 6 12 | = 90

∑_{k=1}^{n} k = n(n+1)/2

168K

\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

446K

d/dy [y^12] = 12y^11

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

144K

e^{i\pi} + 1 = 0

371K

9n² + 8n + 0 = 0

det| 9 4 ; 1 10 | = 86

259K

∫₀^∞ e^(-θ²) dθ = √π / 2

86K

d/dt [t^5] = 5t^4

∂z/∂φ = 7z

224K

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

234K

∇²t = 0

ΔS ≥ 0