Σ index Eq pack 19 Rxn set 20 Rxn set 26 Σ#24 Σ#12 Ledger /21 Eq pack 13 Ledger /3 Eq pack 1 Batch 16 Σ#18 Σ#6 Ledger /15 Batch 4

Field Notes / Σ /sym/3cad98

id=1 · host=formula-vault.cloud · 2026-10-20 04:21Z

12r² + 6r + 1 = 0

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

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∑_{k=1}^{n} k = n(n+1)/2

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∑_{k=1}^{n} k = n(n+1)/2

det| 7 4 ; 4 8 | = 40

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

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4t² + 9t + 6 = 0

e^{i\pi} + 1 = 0

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N₂ + 3H₂ ⇌ 2NH₃

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

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∫₀^∞ e^(-x²) dx = √π / 2

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