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 20:27Z

∑_{k=1}^{n} k = n(n+1)/2

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

244K

∇²φ = 0

52K

6ω² + 3ω + 2 = 0

det| 2 6 ; 0 3 | = 6

90K

11z² + 1z + 0 = 0

91K

CH₄ + 2O₂ → CO₂ + 2H₂O

det| 7 4 ; 4 8 | = 40

100K

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

50K

det| 8 3 ; 4 9 | = 60

det| 7 7 ; 4 8 | = 28

137K

∑_{k=1}^{n} k = n(n+1)/2

197K

∇²ψ = 0

262K

N₂ + 3H₂ ⇌ 2NH₃

196K

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

218K

∇²x = 0

299K

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