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 14:51Z

∑_{k=1}^{n} k = n(n+1)/2

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

244K

PV = nRT

52K

det| 12 5 ; 4 13 | = 136

∇ × E = −∂B/∂t

90K

∫₀^∞ e^(-y²) dy = √π / 2

91K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

d/dx [x^5] = 5x^4

100K

2y² + 8y + 7 = 0

50K

det| 4 9 ; 7 5 | = -43

∫₀^∞ e^(-n²) dn = √π / 2

137K

2H₂ + O₂ → 2H₂O

197K

det| 1 1 ; 3 2 | = -1

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

262K

1θ² + 7θ + 4 = 0

196K

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

218K

8ψ² + 7ψ + 0 = 0

299K

[ 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]