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 20:29Z

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

∑_{k=1}^{n} k = n(n+1)/2

46K

det| 12 9 ; 5 13 | = 111

468K

CaCO₃ → CaO + CO₂

6n² + 7n + 6 = 0

289K

\frac{8}{7} \sum_{i=1}^{n} i^{2}

278K

e^{i\pi} + 1 = 0

det| 10 7 ; 3 11 | = 89

339K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

177K

∂x/∂r = 4x

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

358K

d/dt [t^3] = 3t^2

121K

det| 9 4 ; 1 10 | = 86

399K