Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 17:38Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
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8β² + 2β + 0 = 0
\lim_{t\to 0} \frac{\sin t}{t} = 1
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∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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\frac{2}{2} \sum_{i=1}^{n} i^{2}
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\lim_{r\to 0} \frac{\sin r}{r} = 1
\oint_C \vec{F}\cdot d\vec{r} = 0
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det| 7 4 ; 4 8 | = 40
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det| 11 9 ; 5 12 | = 87
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