Σ index Ledger /3 Matrix 11 Matrix 23 Rxn set 8 Rxn set 20 Batch 16 Σ#6 Eq pack 13 Σ#24 Σ#12 Matrix 17 Ledger /9 Rxn set 26 Batch 4 Σ#18

Field Notes / Σ /sym/3cad98

id=1 · host=formula-vault.cloud · 2026-10-18 23:19Z

d/dn [n^4] = 4n^3

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

384K

∑_{k=1}^{n} k = n(n+1)/2

385K

\lim_{θ\to 0} \frac{\sin θ}{θ} = 1

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

163K

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

259K

iħ ∂ψ/∂t = Ĥψ

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

305K

det| 9 4 ; 1 10 | = 86

57K

det| 11 4 ; 5 12 | = 112

293K

6x² + 6x + 1 = 0

110K