// 利用Eigen 求解非线性最小二乘;
// 示例：<span style="font-family: Arial, Helvetica, sans-serif;">y = 10*(x0+3)^2 + (x1-5)^2</span><pre name="code" class="html"><span style="font-family: Arial, Helvetica, sans-serif;">#include "math.h"</span>// 示例：<span style="font
