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 05:22Z

det| 3 4 ; 0 4 | = 12

∑_{k=1}^{n} k = n(n+1)/2

168K

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

446K

∇²t = 0

det| 7 4 ; 4 8 | = 40

144K

11φ² + 4φ + 0 = 0

371K

7r² + 9r + 2 = 0

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

259K

det| 4 7 ; 2 5 | = 6

86K

∂γ/∂φ = 6γ

∇²ω = 0

224K

N₂ + 3H₂ ⇌ 2NH₃

234K

∫₀^∞ e^(-α²) dα = √π / 2

218K