Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-21 05:53Z
∫₀^∞ e^(-n²) dn = √π / 2
∫₀^∞ e^(-φ²) dφ = √π / 2
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e^{i\pi} + 1 = 0
det| 7 2 ; 7 8 | = 42
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d/dθ [θ^3] = 3θ^2
det| 3 7 ; 2 4 | = -2
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∑_{k=1}^{n} k = n(n+1)/2
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∑_{k=1}^{n} k = n(n+1)/2
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det| 7 4 ; 4 8 | = 40
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