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曲线拟合求参数问题。
把你的初值带入函数，得到Nan才引起了这个问题，只要修改一下a0的初始值，使函数中分母不为0即可，修改后程序如下： %% 清空环境变量 close all; clear; clc; %% 主程序 dat=importdata('data.txt...
3 years ago | 0
| accepted
