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

N₂ + 3H₂ ⇌ 2NH₃

168K

∑_{k=1}^{n} k = n(n+1)/2

446K

3x² + 3x + 6 = 0

∑_{k=1}^{n} k = n(n+1)/2

144K

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

371K

∇²t = 0

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

259K

∫₀^∞ e^(-θ²) dθ = √π / 2

86K

7z² + 2z + 0 = 0

∫₀^∞ e^(-t²) dt = √π / 2

224K

det| 7 4 ; 4 8 | = 40

234K

det| 4 2 ; 5 5 | = 10

ω = 2πf

218K

11t² + 9t + 4 = 0

2H₂ + O₂ → 2H₂O