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 00:20Z

∑_{k=1}^{n} k = n(n+1)/2

∇ × E = −∂B/∂t

168K

7r² + 8r + 5 = 0

446K

3x² + 3x + 6 = 0

∂n/∂θ = 3n

144K

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

371K

∇²t = 0

N₂ + 3H₂ ⇌ 2NH₃

259K

8ψ² + 7ψ + 0 = 0

86K

7z² + 2z + 0 = 0

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

224K

det| 7 2 ; 7 8 | = 42

234K

det| 4 2 ; 5 5 | = 10

N₂ + 3H₂ ⇌ 2NH₃

218K

∑_{k=1}^{n} k = n(n+1)/2

354K

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

70K

ω = 2πf

402K