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 14:38Z

∑_{k=1}^{n} k = n(n+1)/2

det| 2 6 ; 0 3 | = 6

244K

2H₂ + O₂ → 2H₂O

52K

det| 12 5 ; 4 13 | = 136

3ω² + 2ω + 2 = 0

90K

\oint_C \vec{F}\cdot d\vec{r} = 0

91K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂

100K

∑_{k=1}^{n} k = n(n+1)/2

50K

det| 4 9 ; 7 5 | = -43

d/dx [x^3] = 3x^2

137K

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

197K

det| 1 1 ; 3 2 | = -1

d/dy [y^7] = 7y^6

262K

det| 8 5 ; 3 9 | = 57

196K

det| 12 9 ; 3 13 | = 129

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

218K

det| 9 4 ; 1 10 | = 86

299K

F = ma

CaCO₃ → CaO + CO₂

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