引用:
原帖由 hua0127 於 2014-6-12 08:58 PM 發表 
\(f\left( x \right)=2\left( x-\alpha \right)\left( x-\beta \right)\left( x-\gamma \right)\left( x-\delta \right)\)
是不是前面這個2 ?
我是將
\(f\left( x \right)=\left( \sqrt{2}-\alpha \right)\left( \sqrt{2}-\beta \right)\left( \sqrt{2}-\gamma \right)\left( \sqrt{2}-\delta \right)\left( -\sqrt{2}-\alpha \right)\left( -\sqrt{2}-\beta \right)\left( -\sqrt{2}-\gamma \right)\left( -\sqrt{2}-\delta \right)\)
=\(f\left( \sqrt{2} \right)\)\(f\left( -\sqrt{2} \right)\)
這樣的算法哪邊出了問題呢？
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本帖最後由 smartdan 於 2014-6-14 11:58 AM 編輯 ]
