Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 23:02Z
∇²α = 0
∫₀^∞ e^(-φ²) dφ = √π / 2
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∑_{k=1}^{n} k = n(n+1)/2
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e^{i\pi} + 1 = 0
d/dψ [ψ^7] = 7ψ^6
det| 7 4 ; 4 8 | = 40
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9θ² + 1θ + 1 = 0
det| 4 8 ; 0 5 | = 20
∑_{k=1}^{n} k = n(n+1)/2
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