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 00:05Z

∑_{k=1}^{n} k = n(n+1)/2

∑_{k=1}^{n} k = n(n+1)/2

168K

6x² + 6x + 1 = 0

446K

3x² + 3x + 6 = 0

det| 9 4 ; 1 10 | = 86

144K

d/dt [t^3] = 3t^2

371K

∇²t = 0

E = mc²

259K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

86K

7z² + 2z + 0 = 0

e^{i\pi} + 1 = 0

224K

det| 11 5 ; 0 12 | = 132

234K

det| 4 2 ; 5 5 | = 10

9α² + 6α + 0 = 0

218K

∇ × E = −∂B/∂t

354K

2H₂ + O₂ → 2H₂O

iħ ∂ψ/∂t = Ĥψ