Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 21:14Z
∑_{k=1}^{n} k = n(n+1)/2
\oint_C \vec{F}\cdot d\vec{r} = 0
∑_{k=1}^{n} k = n(n+1)/2
129K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 10 9 ; 0 11 | = 110
390K
\lim_{α\to 0} \frac{\sin α}{α} = 1