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

N₂ + 3H₂ ⇌ 2NH₃

468K

iħ ∂ψ/∂t = Ĥψ

7y² + 9y + 1 = 0

289K

∂n/∂θ = 3n

278K

3r² + 6r + 7 = 0

det| 7 4 ; 4 8 | = 40

339K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

177K

E = mc²

∂α/∂r = 8α

358K

∑_{k=1}^{n} k = n(n+1)/2

121K

det| 5 2 ; 3 6 | = 24

399K

∇ × E = −∂B/∂t

316K