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 00:10Z

∑_{k=1}^{n} k = n(n+1)/2

F = G m₁m₂ / r²

168K

2H₂ + O₂ → 2H₂O

446K

3x² + 3x + 6 = 0

d/dx [x^9] = 9x^8

144K

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

371K

∇²t = 0

d/dφ [φ^1] = 1φ^0

259K

iħ ∂ψ/∂t = Ĥψ

86K

7z² + 2z + 0 = 0

det| 9 4 ; 1 10 | = 86

224K

E = mc²

234K

det| 4 2 ; 5 5 | = 10

∑_{k=1}^{n} k = n(n+1)/2

218K

3z² + 5z + 1 = 0

354K

2H₂ + O₂ → 2H₂O

∂n/∂θ = 3n

70K