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 20:33Z

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

∑_{k=1}^{n} k = n(n+1)/2

46K

∑_{k=1}^{n} k = n(n+1)/2

468K

CaCO₃ → CaO + CO₂

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

289K

PV = nRT

278K

e^{i\pi} + 1 = 0

Fe₂O₃ + 3CO → 2Fe + 3CO₂

339K

det| 9 4 ; 1 10 | = 86

177K

det| 7 6 ; 1 8 | = 50

358K

∑_{k=1}^{n} k = n(n+1)/2

121K

\lim_{β\to 0} \frac{\sin β}{β} = 1

399K