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 14:36Z

∑_{k=1}^{n} k = n(n+1)/2

8ψ² + 7ψ + 0 = 0

244K

∇ × E = −∂B/∂t

52K

det| 12 5 ; 4 13 | = 136

7y² + 7y + 0 = 0

90K

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

91K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

100K

N₂ + 3H₂ ⇌ 2NH₃

50K

det| 4 9 ; 7 5 | = -43

det| 2 6 ; 0 3 | = 6

137K

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

197K

det| 1 1 ; 3 2 | = -1

det| 3 3 ; 4 4 | = 0

262K

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

196K

det| 12 9 ; 3 13 | = 129

ΔS ≥ 0

218K

∂α/∂r = 8α

299K

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