Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 14:24Z
∫₀^∞ e^(-ψ²) dψ = √π / 2
∫₀^∞ e^(-ψ²) dψ = √π / 2
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e^{i\pi} + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
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2H₂ + O₂ → 2H₂O
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 5 3 ; 2 6 | = 24
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det| 8 9 ; 4 9 | = 36
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det| 5 2 ; 3 6 | = 24
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