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 14:56Z

∑_{k=1}^{n} k = n(n+1)/2

F = G m₁m₂ / r²

244K

∇²x = 0

52K

det| 12 5 ; 4 13 | = 136

det| 2 4 ; 4 3 | = -10

90K

∑_{k=1}^{n} k = n(n+1)/2

91K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

AgNO₃ + NaCl → AgCl↓ + NaNO₃

100K

det| 9 4 ; 1 10 | = 86

50K

det| 4 9 ; 7 5 | = -43

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

137K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

197K

det| 1 1 ; 3 2 | = -1

iħ ∂ψ/∂t = Ĥψ

262K

∑_{k=1}^{n} k = n(n+1)/2

196K

∑_{k=1}^{n} k = n(n+1)/2

218K

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