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 00:04Z

∑_{k=1}^{n} k = n(n+1)/2

E = mc²

168K

N₂ + 3H₂ ⇌ 2NH₃

446K

3x² + 3x + 6 = 0

6ω² + 4ω + 4 = 0

144K

det| 7 7 ; 4 8 | = 28

371K

∇²t = 0

∑_{k=1}^{n} k = n(n+1)/2

259K

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

86K

7z² + 2z + 0 = 0

det| 10 7 ; 1 11 | = 103

224K

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

234K

det| 7 4 ; 4 8 | = 40

218K