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 14:12Z

∑_{k=1}^{n} k = n(n+1)/2

AgNO₃ + NaCl → AgCl↓ + NaNO₃

244K

F = G m₁m₂ / r²

52K

det| 12 5 ; 4 13 | = 136

∑_{k=1}^{n} k = n(n+1)/2

90K

∫₀^∞ e^(-n²) dn = √π / 2

91K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

\frac{11}{6} \sum_{i=1}^{n} i^{2}

100K

det| 7 4 ; 4 8 | = 40

50K

det| 4 9 ; 7 5 | = -43

∫₀^∞ e^(-x²) dx = √π / 2

137K

11z² + 3z + 4 = 0

197K

det| 1 1 ; 3 2 | = -1

10y² + 5y + 6 = 0

262K

∇ × E = −∂B/∂t

196K

det| 12 9 ; 3 13 | = 129

e^{i\pi} + 1 = 0

218K

det| 3 8 ; 6 4 | = -36

F = ma

CaCO₃ → CaO + CO₂

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