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 00:10Z

∑_{k=1}^{n} k = n(n+1)/2

∑_{k=1}^{n} k = n(n+1)/2

168K

∇ × E = −∂B/∂t

446K

3x² + 3x + 6 = 0

∫₀^∞ e^(-r²) dr = √π / 2

144K

det| 12 2 ; 2 13 | = 152

371K

∇²t = 0

8γ² + 1γ + 1 = 0

259K

∇²t = 0

86K

7z² + 2z + 0 = 0

∂y/∂γ = 8y

224K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

234K

det| 4 2 ; 5 5 | = 10

8ψ² + 7ψ + 0 = 0

218K

∇ × E = −∂B/∂t

354K

10ω² + 7ω + 4 = 0

70K

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

402K