Σ index Rxn set 8 Ledger /9 Σ#24 Ledger /3 Ledger /15 Σ#12 Matrix 11 Batch 22 Eq pack 19 Matrix 17 Eq pack 13 Batch 16 Ledger /27 Eq pack 7

Symbolic Index /sym/ea4bfa

id=1 · host=au.commstar.world · 2026-10-20 14:55Z

∑_{k=1}^{n} k = n(n+1)/2

d/dα [α^9] = 9α^8

244K

∫₀^∞ e^(-n²) dn = √π / 2

52K

det| 12 5 ; 4 13 | = 136

det| 7 4 ; 4 8 | = 40

90K

PV = nRT

91K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

AgNO₃ + NaCl → AgCl↓ + NaNO₃

100K

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

50K

det| 4 9 ; 7 5 | = -43

F = G m₁m₂ / r²

137K

∇ × E = −∂B/∂t

197K

det| 1 1 ; 3 2 | = -1

CH₄ + 2O₂ → CO₂ + 2H₂O

262K

\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

196K

F = G m₁m₂ / r²

218K

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