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 06:05Z

det| 3 9 ; 6 4 | = -42

∇ × E = −∂B/∂t

168K

iħ ∂ψ/∂t = Ĥψ

446K

∑_{k=1}^{n} k = n(n+1)/2

∑_{k=1}^{n} k = n(n+1)/2

144K

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

371K

2z² + 2z + 5 = 0

∂z/∂φ = 7z

259K

8ψ² + 7ψ + 0 = 0

86K

iħ ∂ψ/∂t = Ĥψ

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

224K

PV = nRT

234K

∫₀^∞ e^(-t²) dt = √π / 2

d/dx [x^3] = 3x^2

218K

∑_{k=1}^{n} k = n(n+1)/2

354K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

70K

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

402K

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