Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 19:41Z
∂r/∂φ = 2r
e^{i\pi} + 1 = 0
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
201K
\oint_C \vec{F}\cdot d\vec{r} = 0
det| 10 7 ; 3 11 | = 89
176K
\binom{n}{k} = \frac{n!}{k!(n-k)!}