//注明:a为存储每段二次曲线的系数的二维矩阵 //二次样条差值void fit_second(Point *p, int n, double y0d, vector> &a){ vector va; for (int i=0; i
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//注明:a为存储每段二次曲线的系数的二维矩阵 //二次样条差值void fit_second(Point *p, int n, double y0d, vector> &a){ vector va; for (int i=0; i
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