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 00:11Z

∑_{k=1}^{n} k = n(n+1)/2

3x² + 5x + 7 = 0

168K

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

446K

3x² + 3x + 6 = 0

12n² + 2n + 2 = 0

144K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

371K

∇²t = 0

∑_{k=1}^{n} k = n(n+1)/2

259K

iħ ∂ψ/∂t = Ĥψ

86K

7z² + 2z + 0 = 0

iħ ∂ψ/∂t = Ĥψ

224K

7γ² + 8γ + 3 = 0

234K

det| 4 2 ; 5 5 | = 10

8ψ² + 7ψ + 0 = 0

218K

∂γ/∂θ = 2γ

354K

N₂ + 3H₂ ⇌ 2NH₃

70K

det| 2 6 ; 0 3 | = 6

402K