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 22:10Z

det| 5 7 ; 7 6 | = -19

∇ × E = −∂B/∂t

40K

det| 7 4 ; 4 8 | = 40

297K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

d/dx [x^5] = 5x^4

138K

F = G m₁m₂ / r²

138K

6n² + 8n + 4 = 0

∑_{k=1}^{n} k = n(n+1)/2

176K

det| 11 9 ; 5 12 | = 87

67K

∇²φ = 0

λ = h/p

306K

∑_{k=1}^{n} k = n(n+1)/2

322K

∑_{k=1}^{n} k = n(n+1)/2