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

∑_{k=1}^{n} k = n(n+1)/2

168K

\lim_{β\to 0} \frac{\sin β}{β} = 1

446K

3x² + 3x + 6 = 0

det| 9 6 ; 7 10 | = 48

144K

N₂ + 3H₂ ⇌ 2NH₃

371K

∇²t = 0

CH₄ + 2O₂ → CO₂ + 2H₂O

259K

iħ ∂ψ/∂t = Ĥψ

86K

∫₀^∞ e^(-θ²) dθ = √π / 2

224K

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

234K

8ψ² + 7ψ + 0 = 0

218K

∑_{k=1}^{n} k = n(n+1)/2

354K