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 22:12Z

det| 5 7 ; 7 6 | = -19

∑_{k=1}^{n} k = n(n+1)/2

40K

\lim_{x\to 0} \frac{\sin x}{x} = 1

297K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

∑_{k=1}^{n} k = n(n+1)/2

138K

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

138K

6n² + 8n + 4 = 0

∑_{k=1}^{n} k = n(n+1)/2

176K

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

67K

∇²φ = 0

7y² + 7y + 0 = 0

306K

2β² + 8β + 6 = 0

322K

∑_{k=1}^{n} k = n(n+1)/2

det| 9 4 ; 1 10 | = 86

374K

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

112K

5y² + 8y + 1 = 0

∑_{k=1}^{n} k = n(n+1)/2

247K

det| 1 7 ; 3 2 | = -19