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

det| 9 4 ; 1 10 | = 86

168K

2H₂ + O₂ → 2H₂O

446K

3x² + 3x + 6 = 0

∂α/∂r = 8α

144K

∂x/∂ψ = 6x

371K

∇²t = 0

N₂ + 3H₂ ⇌ 2NH₃

259K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

86K

∑_{k=1}^{n} k = n(n+1)/2

224K

iħ ∂ψ/∂t = Ĥψ

234K

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

218K

det| 9 8 ; 3 10 | = 66

354K

\binom{n}{k} = \frac{n!}{k!(n-k)!}

70K

det| 2 8 ; 7 3 | = -50

402K