Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 21:13Z
∑_{k=1}^{n} k = n(n+1)/2
\oint_C \vec{F}\cdot d\vec{r} = 0
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\oint_C \vec{F}\cdot d\vec{r} = 0
\lim_{β\to 0} \frac{\sin β}{β} = 1
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
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\oint_C \vec{F}\cdot d\vec{r} = 0
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