Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-21 00:07Z
\lim_{r\to 0} \frac{\sin r}{r} = 1
iħ ∂ψ/∂t = Ĥψ
\oint_C \vec{F}\cdot d\vec{r} = 0
143K
det| 5 2 ; 3 6 | = 24
375K
det| 10 7 ; 5 11 | = 75
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
63K
CaCO₃ → CaO + CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\oint_C \vec{F}\cdot d\vec{r} = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂