It is necessary to solve a system of nonlinear equations for fitting the curve of nonlinear function by use of the least square method.
非线性函数的最小二乘法拟合曲线需要求解一个非线性方程组。
Based on the idea of curve fitting, the nonlinear least squares method (Gauss-Newton method) has been applied to estimate the complex parameters.
文中对用高斯·牛顿法拟合三参数和四参数极化曲线方程序求取电化学动力学参数提出了两种改进方法。
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