Σ index Eq pack 19 Eq pack 13 Σ#12 Batch 22 Matrix 17 Σ#24 Batch 10 Ledger /9 Rxn set 8 Eq pack 25 Σ#18 Rxn set 26 Rxn set 14 Matrix 5 Ledger /3 Matrix 23

Field Notes / Σ /sym/3cad98

id=1 · host=formula-vault.cloud · 2026-10-19 17:30Z

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

2H₂ + O₂ → 2H₂O

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∑_{k=1}^{n} k = n(n+1)/2

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iħ ∂ψ/∂t = Ĥψ

2γ² + 5γ + 2 = 0

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12y² + 5y + 7 = 0

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3r² + 6r + 7 = 0

det| 7 4 ; 4 8 | = 40

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∑_{k=1}^{n} k = n(n+1)/2

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F = G m₁m₂ / r²

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\lim_{x\to 0} \frac{\sin x}{x} = 1

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9ψ² + 7ψ + 3 = 0

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∇ × E = −∂B/∂t

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

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