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

d/dz [z^11] = 11z^10

244K

∑_{k=1}^{n} k = n(n+1)/2

52K

det| 12 5 ; 4 13 | = 136

ΔS ≥ 0

90K

7y² + 7y + 0 = 0

91K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

det| 7 4 ; 4 8 | = 40

100K

∑_{k=1}^{n} k = n(n+1)/2

50K

det| 4 9 ; 7 5 | = -43

11z² + 3z + 4 = 0

137K

CH₄ + 2O₂ → CO₂ + 2H₂O

197K

det| 1 1 ; 3 2 | = -1

∑_{k=1}^{n} k = n(n+1)/2

262K

N₂ + 3H₂ ⇌ 2NH₃

196K

det| 12 9 ; 3 13 | = 129

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

218K

det| 3 8 ; 6 4 | = -36

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