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 05:53Z

CaCO₃ → CaO + CO₂

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

46K

∑_{k=1}^{n} k = n(n+1)/2

468K

\lim_{φ\to 0} \frac{\sin φ}{φ} = 1

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

289K

\frac{8}{7} \sum_{i=1}^{n} i^{2}

278K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

N₂ + 3H₂ ⇌ 2NH₃

339K

det| 7 4 ; 4 8 | = 40

177K

det| 12 4 ; 2 13 | = 148

7y² + 9y + 1 = 0

358K

∇²t = 0

121K

12r² + 4r + 0 = 0

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

399K