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 00:13Z

∑_{k=1}^{n} k = n(n+1)/2

∇ × E = −∂B/∂t

168K

2H₂ + O₂ → 2H₂O

446K

3x² + 3x + 6 = 0

det| 4 7 ; 2 5 | = 6

144K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

371K

∇²t = 0

e^{i\pi} + 1 = 0

259K

4γ² + 1γ + 7 = 0

86K

8ψ² + 7ψ + 0 = 0

224K

\lim_{β\to 0} \frac{\sin β}{β} = 1

234K

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

218K

1n² + 7n + 3 = 0

354K

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

70K

∂n/∂θ = 3n

402K

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