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 00:20Z

∑_{k=1}^{n} k = n(n+1)/2

∑_{k=1}^{n} k = n(n+1)/2

168K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

446K

3x² + 3x + 6 = 0

det| 9 8 ; 3 10 | = 66

144K

∂α/∂r = 8α

371K

∇²t = 0

det| 10 3 ; 4 11 | = 98

259K

N₂ + 3H₂ ⇌ 2NH₃

86K

7z² + 2z + 0 = 0

CaCO₃ → CaO + CO₂

224K

8x² + 2x + 7 = 0

234K

det| 7 4 ; 4 8 | = 40

218K

ω = 2πf

354K

10n² + 6n + 2 = 0

70K

6ω² + 4ω + 4 = 0

402K