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

F = G m₁m₂ / r²

168K

F = ma

446K

3x² + 3x + 6 = 0

d/dx [x^9] = 9x^8

144K

iħ ∂ψ/∂t = Ĥψ

371K

∇²t = 0

∇²θ = 0

259K

det| 7 4 ; 4 8 | = 40

86K

7z² + 2z + 0 = 0

∇ × E = −∂B/∂t

224K

\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

234K

det| 4 2 ; 5 5 | = 10

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

218K

det| 12 2 ; 2 13 | = 152

354K

2H₂ + O₂ → 2H₂O

ω = 2πf

70K