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假設兩曲線分別為 f1=2*x^2 + 3*x - 4及f2=-3*x^2 + 2*x + 9
兩曲線圖形如下:
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Excel工具列=>工具=>目標搜尋
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由兩函數圖形可發現會有兩個交點,所以起始值A2給的不同,得到的y也會不同。兩交點分別為
(x y)=(-1.715549442 ,-3.260428549) 以及(x,y)=(1.515549442, 5.14042855)
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