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 14:57Z

∑_{k=1}^{n} k = n(n+1)/2

Fe₂O₃ + 3CO → 2Fe + 3CO₂

244K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

52K

det| 12 5 ; 4 13 | = 136

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

90K

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

91K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

∑_{k=1}^{n} k = n(n+1)/2

100K

∂n/∂θ = 3n

50K

det| 4 9 ; 7 5 | = -43

d/dγ [γ^3] = 3γ^2

137K

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

197K

det| 9 4 ; 1 10 | = 86

262K

∇²x = 0

196K

∑_{k=1}^{n} k = n(n+1)/2

218K

[ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27]