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 00:21Z

∑_{k=1}^{n} k = n(n+1)/2

8ψ² + 7ψ + 0 = 0

168K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

446K

3x² + 3x + 6 = 0

∇ × E = −∂B/∂t

144K

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

371K

∇²t = 0

det| 9 6 ; 0 10 | = 90

259K

∑_{k=1}^{n} k = n(n+1)/2

86K

7z² + 2z + 0 = 0

CH₄ + 2O₂ → CO₂ + 2H₂O

224K

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

234K

det| 4 2 ; 5 5 | = 10

9α² + 6α + 0 = 0

218K

∫₀^∞ e^(-ψ²) dψ = √π / 2

354K

2H₂ + O₂ → 2H₂O

iħ ∂ψ/∂t = Ĥψ