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 00:10Z

2H₂ + O₂ → 2H₂O

∑_{k=1}^{n} k = n(n+1)/2

244K

N₂ + 3H₂ ⇌ 2NH₃

52K

det| 8 8 ; 7 9 | = 16

7y² + 7y + 0 = 0

90K

7γ² + 3γ + 1 = 0

91K

CH₄ + 2O₂ → CO₂ + 2H₂O

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

100K

\frac{12}{6} \sum_{i=1}^{n} i^{2}

50K

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

det| 2 6 ; 0 3 | = 6

137K

det| 7 4 ; 4 8 | = 40

197K

det| 10 3 ; 0 11 | = 110

det| 3 3 ; 4 4 | = 0

262K

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

196K

9z² + 8z + 1 = 0

ΔS ≥ 0

218K

∂α/∂r = 8α

299K

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