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 22:25Z

det| 5 7 ; 7 6 | = -19

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

40K

\frac{3}{2} \sum_{i=1}^{n} i^{2}

297K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

\frac{2}{2} \sum_{i=1}^{n} i^{2}

138K

11φ² + 7φ + 7 = 0

138K

6n² + 8n + 4 = 0

det| 9 4 ; 1 10 | = 86

176K

∑_{k=1}^{n} k = n(n+1)/2

67K

∇²φ = 0

∫₀^∞ e^(-φ²) dφ = √π / 2

306K

∇²r = 0

322K

∑_{k=1}^{n} k = n(n+1)/2

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

374K

6x² + 7x + 6 = 0

112K

5y² + 8y + 1 = 0

det| 1 7 ; 3 2 | = -19