Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 17:40Z
∑_{k=1}^{n} k = n(n+1)/2
∫₀^∞ e^(-x²) dx = √π / 2
75K
∑_{k=1}^{n} k = n(n+1)/2
479K
8β² + 2β + 0 = 0
∫₀^∞ e^(-φ²) dφ = √π / 2
129K
∑_{k=1}^{n} k = n(n+1)/2
det| 5 6 ; 7 6 | = -12
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det| 7 4 ; 4 8 | = 40
390K
\lim_{r\to 0} \frac{\sin r}{r} = 1