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 22:48Z

det| 5 7 ; 7 6 | = -19

∑_{k=1}^{n} k = n(n+1)/2

40K

det| 9 4 ; 1 10 | = 86

297K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

N₂ + 3H₂ ⇌ 2NH₃

138K

∑_{k=1}^{n} k = n(n+1)/2

138K

6n² + 8n + 4 = 0

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

176K

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

67K

∇²φ = 0

∑_{k=1}^{n} k = n(n+1)/2

306K

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

322K

∑_{k=1}^{n} k = n(n+1)/2

F = ma

374K

\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

112K

5y² + 8y + 1 = 0

ΔS ≥ 0

247K

∇ × E = −∂B/∂t

417K