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 21:37Z

2H₂ + O₂ → 2H₂O

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

168K

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

446K

3θ² + 4θ + 0 = 0

8ψ² + 7ψ + 0 = 0

144K

5φ² + 1φ + 1 = 0

371K

∇²t = 0

∫₀^∞ e^(-θ²) dθ = √π / 2

259K

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

86K

det| 11 7 ; 4 12 | = 104

iħ ∂ψ/∂t = Ĥψ

224K

∂β/∂z = 1β

234K

4t² + 2t + 7 = 0

N₂ + 3H₂ ⇌ 2NH₃

218K

det| 4 2 ; 6 5 | = 8

354K

∑_{k=1}^{n} k = n(n+1)/2