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 07:37Z

∑_{k=1}^{n} k = n(n+1)/2

7y² + 9y + 1 = 0

46K

8ψ² + 7ψ + 0 = 0

468K

\frac{6}{1} \sum_{i=1}^{n} i^{2}

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

289K

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

278K

∂x/∂θ = 8x

F = G m₁m₂ / r²

339K

∇ × E = −∂B/∂t

177K

\frac{3}{2} \sum_{i=1}^{n} i^{2}

358K

∂y/∂n = 5y

121K