Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:19Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
66K
∑_{k=1}^{n} k = n(n+1)/2
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∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
2K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
det| 7 4 ; 4 8 | = 40
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det| 4 8 ; 3 5 | = -4
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\frac{7}{1} \sum_{i=1}^{n} i^{2}
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det| 9 5 ; 1 10 | = 85
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C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
392K