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 00:02Z

∑_{k=1}^{n} k = n(n+1)/2

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

168K

\frac{4}{6} \sum_{i=1}^{n} i^{2}

446K

3x² + 3x + 6 = 0

∇ × E = −∂B/∂t

144K

∫₀^∞ e^(-θ²) dθ = √π / 2

371K

∇²t = 0

8θ² + 8θ + 6 = 0

259K

∇²β = 0

86K

5φ² + 1φ + 1 = 0

224K

iħ ∂ψ/∂t = Ĥψ

234K

8ψ² + 7ψ + 0 = 0

218K

det| 11 4 ; 5 12 | = 112

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

70K