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 06:48Z

det| 3 9 ; 6 4 | = -42

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

168K

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

446K

∑_{k=1}^{n} k = n(n+1)/2

F = G m₁m₂ / r²

144K

∇ × E = −∂B/∂t

371K

2z² + 2z + 5 = 0

∇ × E = −∂B/∂t

259K

e^{i\pi} + 1 = 0

86K

iħ ∂ψ/∂t = Ĥψ

∇²z = 0

224K

6ω² + 4ω + 4 = 0

234K

∫₀^∞ e^(-t²) dt = √π / 2

det| 7 4 ; 4 8 | = 40

218K

2H₂ + O₂ → 2H₂O

det| 4 5 ; 7 5 | = -15