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 00:14Z

∑_{k=1}^{n} k = n(n+1)/2

∑_{k=1}^{n} k = n(n+1)/2

168K

det| 12 1 ; 5 13 | = 151

446K

3x² + 3x + 6 = 0

F = G m₁m₂ / r²

144K

det| 4 2 ; 6 5 | = 8

371K

∇²t = 0

iħ ∂ψ/∂t = Ĥψ

259K

det| 9 4 ; 1 10 | = 86

86K

7z² + 2z + 0 = 0

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

224K

det| 5 9 ; 7 6 | = -33

234K

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

218K

∇²n = 0

354K

10n² + 6n + 2 = 0

70K

\oint_C \vec{F}\cdot d\vec{r} = 0

402K