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O-17 发表于 2023-1-29 06:06 跑了一下程序, 取等条件是 ( 非精确值 ) $(a,b,c)\sim(0.32,1.05,1.63)$ 可以合理推测这就是 $(\sin^2\df ...
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2025-4-21 01:15 GMT+8
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