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 00:29Z

∑_{k=1}^{n} k = n(n+1)/2

Fe₂O₃ + 3CO → 2Fe + 3CO₂

168K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

446K

3x² + 3x + 6 = 0

N₂ + 3H₂ ⇌ 2NH₃

144K

det| 7 4 ; 4 8 | = 40

371K

∇²t = 0

12α² + 6α + 7 = 0

259K

10t² + 9t + 5 = 0

86K

7z² + 2z + 0 = 0

det| 11 5 ; 0 12 | = 132

224K

CH₄ + 2O₂ → CO₂ + 2H₂O

234K

N₂ + 3H₂ ⇌ 2NH₃

218K

d/dθ [θ^3] = 3θ^2

354K

∑_{k=1}^{n} k = n(n+1)/2

70K