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 20:34Z

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

det| 11 5 ; 0 12 | = 132

46K

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

468K

CaCO₃ → CaO + CO₂

∑_{k=1}^{n} k = n(n+1)/2

289K

12y² + 5y + 7 = 0

278K

e^{i\pi} + 1 = 0

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

339K

\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

177K

8ψ² + 7ψ + 0 = 0

358K

N₂ + 3H₂ ⇌ 2NH₃

121K

∇²r = 0

399K

∇ × E = −∂B/∂t

316K

10ω² + 7ω + 4 = 0

11K