Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-20 02:13Z
∂r/∂t = 7r
\lim_{y\to 0} \frac{\sin y}{y} = 1
∑_{k=1}^{n} k = n(n+1)/2
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iħ ∂ψ/∂t = Ĥψ
det| 4 4 ; 5 5 | = 0
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det| 9 4 ; 1 10 | = 86
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det| 3 7 ; 2 4 | = -2
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∑_{k=1}^{n} k = n(n+1)/2
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