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nlinfit 二元函数拟合问题。
最简单的办法是用线性最小二乘法，把 z 的表达式展开，得到关于 x，y 的多项式，只用拟合出二元多项式系数即可。这个可以通过矩阵除法实现
3 years ago | 0
| accepted
