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 20:05Z

∑_{k=1}^{n} k = n(n+1)/2

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

244K

det| 2 4 ; 4 3 | = -10

52K

6ω² + 3ω + 2 = 0

∫₀^∞ e^(-ω²) dω = √π / 2

90K

∫₀^∞ e^(-y²) dy = √π / 2

91K

CH₄ + 2O₂ → CO₂ + 2H₂O

∑_{k=1}^{n} k = n(n+1)/2

100K

det| 7 4 ; 4 8 | = 40

50K

det| 8 3 ; 4 9 | = 60

10y² + 5y + 6 = 0

137K

d/dα [α^9] = 9α^8

197K

9x² + 3x + 6 = 0

2β² + 8β + 6 = 0

262K

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

196K

N₂ + 3H₂ ⇌ 2NH₃

218K

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