Σ index Eq pack 19 Rxn set 20 Rxn set 26 Σ#24 Σ#12 Ledger /21 Eq pack 13 Ledger /3 Eq pack 1 Batch 16 Σ#18 Σ#6 Ledger /15 Batch 4

Field Notes / Σ /sym/3cad98

id=1 · host=formula-vault.cloud · 2026-10-20 00:17Z

∑_{k=1}^{n} k = n(n+1)/2

PV = nRT

168K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

446K

3x² + 3x + 6 = 0

∂β/∂z = 1β

144K

N₂ + 3H₂ ⇌ 2NH₃

371K

∇²t = 0

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

259K

det| 4 2 ; 6 5 | = 8

86K

7z² + 2z + 0 = 0

det| 7 6 ; 1 8 | = 50

224K

∑_{k=1}^{n} k = n(n+1)/2

234K

∇²t = 0

218K

det| 7 4 ; 4 8 | = 40

354K

det| 8 9 ; 4 9 | = 36

70K