Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 02:13Z
∂r/∂t = 7r
det| 10 2 ; 1 11 | = 108
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\lim_{y\to 0} \frac{\sin y}{y} = 1
∫₀^∞ e^(-x²) dx = √π / 2
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iħ ∂ψ/∂t = Ĥψ
det| 12 8 ; 0 13 | = 156
det| 12 4 ; 2 13 | = 148
∑_{k=1}^{n} k = n(n+1)/2
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