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 00:19Z

∑_{k=1}^{n} k = n(n+1)/2

∇ × E = −∂B/∂t

168K

∫₀^∞ e^(-θ²) dθ = √π / 2

446K

3x² + 3x + 6 = 0

8ψ² + 7ψ + 0 = 0

144K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

371K

∇²t = 0

∂n/∂θ = 3n

259K

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

86K

7z² + 2z + 0 = 0

∑_{k=1}^{n} k = n(n+1)/2

224K

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

234K

det| 4 2 ; 5 5 | = 10

11φ² + 4φ + 0 = 0

218K

11t² + 9t + 4 = 0

2H₂ + O₂ → 2H₂O

iħ ∂ψ/∂t = Ĥψ

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