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 00:29Z

∑_{k=1}^{n} k = n(n+1)/2

AgNO₃ + NaCl → AgCl↓ + NaNO₃

168K

det| 5 6 ; 2 6 | = 18

446K

3x² + 3x + 6 = 0

iħ ∂ψ/∂t = Ĥψ

144K

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

371K

∇²t = 0

8ψ² + 7ψ + 0 = 0

259K

\oint_C \vec{F}\cdot d\vec{r} = 0

86K

7z² + 2z + 0 = 0

\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

224K

N₂ + 3H₂ ⇌ 2NH₃

234K

det| 4 2 ; 5 5 | = 10

11t² + 9t + 4 = 0

2H₂ + O₂ → 2H₂O

iħ ∂ψ/∂t = Ĥψ