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 20:19Z

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

∂y/∂n = 5y

46K

∑_{k=1}^{n} k = n(n+1)/2

468K

CaCO₃ → CaO + CO₂

det| 3 7 ; 2 4 | = -2

289K

PV = nRT

278K

e^{i\pi} + 1 = 0

det| 9 4 ; 1 10 | = 86

339K

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

177K

∂x/∂r = 4x

\lim_{r\to 0} \frac{\sin r}{r} = 1

358K

∇²t = 0

121K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

1n² + 7n + 3 = 0

399K