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[求助] 求助matlab编程遇到的问题

请教虫友,在matlab里面怎么设置数值呢?我在计算非线性方程组时遇到如下情况:fsolve stopped because the last step was ineffective. However, the vector of function values is not near zero, as measured by the default value of the function tolerance.
具体原因如下:
fsolve stopped because the sum of squared function values, r, changed by 9.038821e-013
relative to its initial value; this is less than max(options.TolFun^2,eps) = 1.000000e-012.
However, r = 3.231949e+045, exceeds sqrt(options.TolFun) = 1.000000e-003.

Optimization Metric                                                 Options
relative change r =  9.04e-013                  max(TolFun^2,eps) =  1e-012 (default)
r =  3.23e+045                                      sqrt(TolFun) = 1.0e-003 (default)

谢谢阿佳的帮助。
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