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 14:41Z

∑_{k=1}^{n} k = n(n+1)/2

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

244K

5φ² + 1φ + 1 = 0

52K

det| 12 5 ; 4 13 | = 136

det| 7 4 ; 4 8 | = 40

90K

2β² + 9β + 3 = 0

91K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

5r² + 7r + 0 = 0

100K

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

50K

det| 4 9 ; 7 5 | = -43

det| 2 7 ; 7 3 | = -43

137K

∇ × E = −∂B/∂t

197K

det| 1 1 ; 3 2 | = -1

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

262K

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

196K

F = G m₁m₂ / r²

218K

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