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 00:05Z

∑_{k=1}^{n} k = n(n+1)/2

8ψ² + 7ψ + 0 = 0

168K

∑_{k=1}^{n} k = n(n+1)/2

446K

3x² + 3x + 6 = 0

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

144K

e^{i\pi} + 1 = 0

371K

∇²t = 0

det| 5 2 ; 3 6 | = 24

259K

iħ ∂ψ/∂t = Ĥψ

86K

7z² + 2z + 0 = 0

N₂ + 3H₂ ⇌ 2NH₃

224K

d/dθ [θ^3] = 3θ^2

234K

det| 4 2 ; 5 5 | = 10

\lim_{t\to 0} \frac{\sin t}{t} = 1

218K

det| 12 2 ; 2 13 | = 152

354K

2H₂ + O₂ → 2H₂O

∇²r = 0

70K