[其他] 工數
請問大大
要怎麼證明"六分之拍呢?"
還有
XUt+Ux=0
u(x,0)=0
u(0,-t)=0
這題目要怎麼解呢?
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06/11 23:38, , 1F
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06/11 23:55, 9F
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