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 00:14Z

∑_{k=1}^{n} k = n(n+1)/2

∑_{k=1}^{n} k = n(n+1)/2

168K

∂α/∂r = 8α

446K

3x² + 3x + 6 = 0

\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

144K

e^{i\pi} + 1 = 0

371K

∇²t = 0

det| 9 4 ; 1 10 | = 86

259K

∫₀^∞ e^(-θ²) dθ = √π / 2

86K

7z² + 2z + 0 = 0

∫₀^∞ e^(-ψ²) dψ = √π / 2

224K

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

234K

det| 4 2 ; 5 5 | = 10

11t² + 9t + 4 = 0