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 00:15Z

∑_{k=1}^{n} k = n(n+1)/2

8ψ² + 7ψ + 0 = 0

168K

∇ × E = −∂B/∂t

446K

3x² + 3x + 6 = 0

\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

144K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

371K

∇²t = 0

3r² + 2r + 0 = 0

259K

∫₀^∞ e^(-θ²) dθ = √π / 2

86K

7z² + 2z + 0 = 0

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

224K

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

234K

det| 4 2 ; 5 5 | = 10

∇²r = 0

218K

∇ × E = −∂B/∂t

354K

2H₂ + O₂ → 2H₂O

ΔS ≥ 0

70K

N₂ + 3H₂ ⇌ 2NH₃

402K

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