最小二乘法实验报告(共2页).docx

精选优质文档-倾情为你奉上计算方法与实习实验报告2.已知实验数据如下：Xi1.02.53.54.0Yi3.81.5026.033.0试用形如y=a+bx2的抛物线进行最小二乘拟合。程序如下：#includedouble kk()double k=0;for(int i=0;i4;i+)k+=1*1;return k;double kj(double x4)double k=0;for(int i=0;i4;i+)k+=xi*xi;return k;double jj(double x4)double k=0;for(int i=0;i4;i+)k+=xi*xi*xi*xi;return k;double yk(double y4)double k=0;for(int i=0;i4;i+)