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 17:33Z

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

Fe₂O₃ + 3CO → 2Fe + 3CO₂

46K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

468K

iħ ∂ψ/∂t = Ĥψ

d/dx [x^3] = 3x^2

289K

det| 7 4 ; 4 8 | = 40

278K

3r² + 6r + 7 = 0

det| 10 3 ; 4 11 | = 98

339K

PV = nRT

177K

E = mc²

E = mc²

358K

9α² + 7α + 5 = 0

121K

N₂ + 3H₂ ⇌ 2NH₃

399K

8x² + 2x + 7 = 0

316K

∑_{k=1}^{n} k = n(n+1)/2

11K