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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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