Scipy-具有线性约束的非线性方程组(初学者) [英] Scipy - Non-linear Equations System with linear constraints (beginner)

问题描述

我已经看到了这个令人惊叹的示例. 但是我需要求解在X和F上具有边界的系统，例如:

I have seen this amazing example. But I need to solve system with boundaries on X and F, for example:

    f1 = x+y^2 = 0
    f2 = e^x+ xy = 0
-5.5< x <0.18
2.1< y < 10.6
   # 0.15< f1 <20.5 - not useful for this example
   # -10.5< f2 < -0.16 - not useful for this example

我怎样才能将此边界约束设置为scipy的fsolve()?还是可能有其他方法? 您能给我一个简单的代码示例吗?

How could I set this boundary constrains to fsolve() of scipy? Or may be there is some other method? Would You give me a Simple code example?

推荐答案

这取决于系统，但是在此之后，您可以简单地检查约束.

It depends on the system, but here you can simply check the constraints afterwards.

首先解决您的非线性系统，以得到(x，y)形式的一个/无/多个解.然后检查这些解决方案中有哪些满足约束条件.

First solve your nonlinear system to get one/none/several solutions of the form (x,y). Then check which, if any, of these solutions, satisfy the constraints.

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