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 04:14Z

12r² + 6r + 1 = 0

6n² + 7n + 6 = 0

168K

\binom{n}{k} = \frac{n!}{k!(n-k)!}

446K

∑_{k=1}^{n} k = n(n+1)/2

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

144K

∇ × E = −∂B/∂t

371K

4t² + 9t + 6 = 0

∑_{k=1}^{n} k = n(n+1)/2

259K

e^{i\pi} + 1 = 0

86K

∇²ψ = 0

det| 9 4 ; 1 10 | = 86

224K

PV = nRT

234K

F = ma

det| 12 2 ; 2 13 | = 152

218K

∂α/∂r = 8α

354K

det| 4 8 ; 7 5 | = -36

\lim_{α\to 0} \frac{\sin α}{α} = 1