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 00:12Z

∑_{k=1}^{n} k = n(n+1)/2

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

168K

d/dθ [θ^3] = 3θ^2

446K

3x² + 3x + 6 = 0

10γ² + 8γ + 7 = 0

144K

PV = nRT

371K

∇²t = 0

Fe₂O₃ + 3CO → 2Fe + 3CO₂

259K

F = G m₁m₂ / r²

86K

7z² + 2z + 0 = 0

det| 7 4 ; 4 8 | = 40

224K

E = mc²

234K

det| 4 2 ; 5 5 | = 10

\lim_{β\to 0} \frac{\sin β}{β} = 1

218K

∇ × E = −∂B/∂t

354K