文件名称:qinkaili_2_homework
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. 对于函数 f(x) =
1
1 + 25x 2
在区间 [− 1,1] 上取 x i = − 1 + 0.2i(i =
0,1,...,10)，试求 3 次曲线拟合，试画出拟合曲线并输出方程。-For the function f (x) = 1 1+ 25x 2 in the interval taking xi =-1+ 0.2i (i = 0,1, ..., 10), Find the 3rd curve fitting [-1,1] on together, try to draw the fitted curve and the output equation.
1
1 + 25x 2
在区间 [− 1,1] 上取 x i = − 1 + 0.2i(i =
0,1,...,10)，试求 3 次曲线拟合，试画出拟合曲线并输出方程。-For the function f (x) = 1 1+ 25x 2 in the interval taking xi =-1+ 0.2i (i = 0,1, ..., 10), Find the 3rd curve fitting [-1,1] on together, try to draw the fitted curve and the output equation.
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qinkaili_2_homework.m