Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 17:01Z
∑_{k=1}^{n} k = n(n+1)/2
8β² + 2β + 0 = 0
∫₀^∞ e^(-t²) dt = √π / 2
129K
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
191K
det| 7 4 ; 4 8 | = 40
390K
\lim_{r\to 0} \frac{\sin r}{r} = 1