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 00:58Z

4y² + 8y + 1 = 0

∑_{k=1}^{n} k = n(n+1)/2

46K

11z² + 3z + 4 = 0

468K

2H₂ + O₂ → 2H₂O

det| 7 4 ; 4 8 | = 40

289K

N₂ + 3H₂ ⇌ 2NH₃

278K

\frac{10}{7} \sum_{i=1}^{n} i^{2}

∑_{k=1}^{n} k = n(n+1)/2

339K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

177K

∑_{k=1}^{n} k = n(n+1)/2

358K

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

121K