Σ index Rxn set 8 Ledger /9 Matrix 23 Batch 16 Batch 22 Σ#12 Ledger /15 Eq pack 1 Ledger /21

Spectra Ledger /sym/2e6562

id=1 · host=commstar.world · 2026-10-18 23:41Z

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

∇²z = 0

40K

F = G m₁m₂ / r²

297K

∫₀^∞ e^(-r²) dr = √π / 2

∫₀^∞ e^(-θ²) dθ = √π / 2

138K

∫₀^∞ e^(-n²) dn = √π / 2

138K

7z² + 5z + 1 = 0

7y² + 7y + 0 = 0

176K

det| 7 4 ; 4 8 | = 40

67K

∑_{k=1}^{n} k = n(n+1)/2

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

306K

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

322K

N₂ + 3H₂ ⇌ 2NH₃

d/dn [n^6] = 6n^5

374K

∇ × E = −∂B/∂t

112K

2t² + 5t + 1 = 0

3z² + 5z + 1 = 0

247K

12φ² + 4φ + 7 = 0

Fe₂O₃ + 3CO → 2Fe + 3CO₂

C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂