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 03:37Z

∇ × E = −∂B/∂t

∑_{k=1}^{n} k = n(n+1)/2

168K

2H₂ + O₂ → 2H₂O

446K

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

det| 7 4 ; 4 8 | = 40

144K

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

371K

∂x/∂n = 6x

6n² + 7n + 6 = 0

259K

det| 3 7 ; 2 4 | = -2

86K

E = mc²

224K

N₂ + 3H₂ ⇌ 2NH₃

234K

11t² + 9t + 5 = 0

218K

∫₀^∞ e^(-t²) dt = √π / 2

354K

∑_{k=1}^{n} k = n(n+1)/2

70K

7y² + 9y + 1 = 0

402K