Σ index Matrix 17 Matrix 23 Σ#24 Rxn set 20 Eq pack 7 Eq pack 13 Rxn set 2 Ledger /15 Ledger /21 Rxn set 14 Rxn set 8 Batch 16 Eq pack 19 Ledger /9 Eq pack 1

Field Notes / Σ /sym/b26508

id=1 · host=uk.mattivster.me · 2026-10-20 00:02Z

∇²β = 0

E = mc²

164K

∇²θ = 0

232K

3y² + 5y + 2 = 0

∑_{k=1}^{n} k = n(n+1)/2

375K

\frac{6}{7} \sum_{i=1}^{n} i^{2}

47K

d/dx [x^2] = 2x^1

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

165K

11ψ² + 6ψ + 2 = 0

372K

1φ² + 5φ + 7 = 0

d/dα [α^9] = 9α^8

430K

∫₀^∞ e^(-x²) dx = √π / 2

130K

ΔS ≥ 0

455K

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

336K

∑_{k=1}^{n} k = n(n+1)/2

215K

det| 9 4 ; 1 10 | = 86

324K

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