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 22:23Z

det| 5 7 ; 7 6 | = -19

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

40K

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

297K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

∑_{k=1}^{n} k = n(n+1)/2

138K

CH₄ + 2O₂ → CO₂ + 2H₂O

138K

6n² + 8n + 4 = 0

N₂ + 3H₂ ⇌ 2NH₃

176K

∫₀^∞ e^(-θ²) dθ = √π / 2

67K

∇²φ = 0

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

306K

det| 3 6 ; 0 4 | = 12

322K

∑_{k=1}^{n} k = n(n+1)/2

det| 7 4 ; 4 8 | = 40

374K

CH₄ + 2O₂ → CO₂ + 2H₂O

5y² + 8y + 1 = 0