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 00:21Z

∑_{k=1}^{n} k = n(n+1)/2

iħ ∂ψ/∂t = Ĥψ

168K

\frac{8}{6} \sum_{i=1}^{n} i^{2}

446K

3x² + 3x + 6 = 0

F = ma

144K

N₂ + 3H₂ ⇌ 2NH₃

371K

∇²t = 0

∑_{k=1}^{n} k = n(n+1)/2

259K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

86K

7z² + 2z + 0 = 0

7r² + 8r + 5 = 0

224K

8ψ² + 7ψ + 0 = 0

234K

det| 4 2 ; 5 5 | = 10

det| 12 1 ; 5 13 | = 151

218K

11t² + 9t + 4 = 0

2H₂ + O₂ → 2H₂O

iħ ∂ψ/∂t = Ĥψ

\lim_{x\to 0} \frac{\sin x}{x} = 1