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 17:14Z

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

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

46K

∂y/∂n = 5y

468K

iħ ∂ψ/∂t = Ĥψ

det| 2 3 ; 5 3 | = -9

289K

iħ ∂ψ/∂t = Ĥψ

278K

3r² + 6r + 7 = 0

8ψ² + 7ψ + 0 = 0

339K

\frac{4}{9} \sum_{i=1}^{n} i^{2}

177K

E = mc²

det| 2 7 ; 7 3 | = -43

358K

det| 10 2 ; 3 11 | = 104

121K

\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

399K

N₂ + 3H₂ ⇌ 2NH₃

316K