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 20:57Z

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

det| 4 7 ; 2 5 | = 6

46K

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

468K

CaCO₃ → CaO + CO₂

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

289K

det| 9 4 ; 1 10 | = 86

278K

e^{i\pi} + 1 = 0

∫₀^∞ e^(-x²) dx = √π / 2

339K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

177K

∑_{k=1}^{n} k = n(n+1)/2

358K

∑_{k=1}^{n} k = n(n+1)/2

121K