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 00:29Z

∑_{k=1}^{n} k = n(n+1)/2

∑_{k=1}^{n} k = n(n+1)/2

168K

det| 7 4 ; 4 8 | = 40

446K

3x² + 3x + 6 = 0

e^{i\pi} + 1 = 0

144K

N₂ + 3H₂ ⇌ 2NH₃

371K

∇²t = 0

det| 3 6 ; 0 4 | = 12

259K

\oint_C \vec{F}\cdot d\vec{r} = 0

86K

7z² + 2z + 0 = 0

∂γ/∂θ = 2γ

224K

∂γ/∂z = 6γ

234K

ΔS ≥ 0

218K

12γ² + 9γ + 1 = 0

354K

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

70K