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

∂y/∂n = 5y

168K

∑_{k=1}^{n} k = n(n+1)/2

446K

∑_{k=1}^{n} k = n(n+1)/2

N₂ + 3H₂ ⇌ 2NH₃

144K

λ = h/p

371K

2z² + 2z + 5 = 0

∑_{k=1}^{n} k = n(n+1)/2

259K

det| 7 4 ; 4 8 | = 40

86K

iħ ∂ψ/∂t = Ĥψ

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

224K

∑_{k=1}^{n} k = n(n+1)/2

234K

∫₀^∞ e^(-t²) dt = √π / 2

∫₀^∞ e^(-θ²) dθ = √π / 2

218K

2H₂ + O₂ → 2H₂O

det| 4 5 ; 7 5 | = -15

7r² + 7r + 5 = 0

CH₄ + 2O₂ → CO₂ + 2H₂O

∑_{k=1}^{n} k = n(n+1)/2

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