Σ index Eq pack 19 Eq pack 13 Σ#12 Batch 22 Matrix 17 Σ#24 Batch 10 Ledger /9 Rxn set 8 Eq pack 25 Σ#18 Rxn set 26 Rxn set 14 Matrix 5 Ledger /3 Matrix 23

Field Notes / Σ /sym/3cad98

id=1 · host=formula-vault.cloud · 2026-10-19 20:26Z

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

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

46K

∑_{k=1}^{n} k = n(n+1)/2

468K

CaCO₃ → CaO + CO₂

E = mc²

289K

det| 7 4 ; 4 8 | = 40

278K

e^{i\pi} + 1 = 0

∑_{k=1}^{n} k = n(n+1)/2

339K

\frac{4}{9} \sum_{i=1}^{n} i^{2}

177K

∂x/∂r = 4x

∂y/∂γ = 8y

358K

det| 7 6 ; 1 8 | = 50

121K

\lim_{α\to 0} \frac{\sin α}{α} = 1

399K

N₂ + 3H₂ ⇌ 2NH₃

316K