Question

matlab solve函数没有解析解

h =-(5*exp((5*m)/19 + 7/8))/(19*(exp((5*m)/19 + 7/8) + 1)^2)
solve(h)

警告: Explicit solution could not be found.
> In solve at 179

Answer 1

该题，可以用fsolve（）函数得到数值解。

>> h =@(m)-(5*exp((5*m)/19 + 7/8))/(19*(exp((5*m)/19 + 7/8) + 1)^2);
>> [m,f]=fsolve(h,0)

运行结果