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 00:19Z

∑_{k=1}^{n} k = n(n+1)/2

\frac{8}{7} \sum_{i=1}^{n} i^{2}

168K

∑_{k=1}^{n} k = n(n+1)/2

446K

3x² + 3x + 6 = 0

11ψ² + 6ψ + 2 = 0

144K

iħ ∂ψ/∂t = Ĥψ

371K

∇²t = 0

8ψ² + 7ψ + 0 = 0

259K

\frac{4}{9} \sum_{i=1}^{n} i^{2}

86K

7z² + 2z + 0 = 0

iħ ∂ψ/∂t = Ĥψ

224K

det| 10 7 ; 3 11 | = 89

234K

9θ² + 7θ + 4 = 0

218K

N₂ + 3H₂ ⇌ 2NH₃

354K