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 14:54Z

∑_{k=1}^{n} k = n(n+1)/2

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

244K

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

52K

det| 12 5 ; 4 13 | = 136

det| 11 9 ; 0 12 | = 132

90K

7y² + 7y + 0 = 0

91K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

100K

ΔS ≥ 0

50K

det| 4 9 ; 7 5 | = -43

det| 2 7 ; 7 3 | = -43

137K

det| 4 6 ; 4 5 | = -4

197K

det| 1 1 ; 3 2 | = -1

d/dα [α^9] = 9α^8

262K

∇ × E = −∂B/∂t

196K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

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]