How to limit fsolve to find solution in Real numbers domain

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Jagadeesh Korukonda
编辑： Matt J 2022-8-24
Suppose, If I have some set of non-linear equations. I want to solve those equations with fsolve, but I want solution only in real values not imaginary ones. Is there any way to restrict fsolve in this way?
Thanks in advance

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Matt J
Matt J 2022-8-24
编辑：Matt J 2022-8-24
That will automatically be the case, as long as the equation functions you have provided are real-valued.
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Matt J
Matt J 2022-8-24
编辑：Matt J 2022-8-24
If solve the equation it will give real root and imaginary root for different intial values.
No, that shouldn't happen.
There is no guarantee that fsolve will succeeed in finding a root, but the value it returns should always be real, assuming the cubic polynomial coefficients and the initial guess x0 are real.

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