1, Baidu knows that it is getting worse and worse now. Just like the answer upstairs, there is obviously no doubt about irrigation, and such a fool is actually a certified "computer expert", and this irrigation answer will be recommended by the administrator. . . . . .

2. The code published by the subject is provided by others. That man is much better than that idiot upstairs. At least it looks like MATLAB code, and the code is really irrelevant to the problem. However, I have to say that this person is also a liar, and the answer is completely unreliable:

(1) This is a system of differential algebraic equations (DAE). How to solve it with solve?

(2) The calculation can be solved by solve. When can the solving function be represented by "= ="?

(3) If we use diff to represent the derivative of differential equation, we won't try it ourselves. What will you get?

It's really shameful to answer questions with such a group of stupid liars.

However, the liar is still useful-at least he can save me some effort by inputting those constants; That fool upstairs named "Zou Rui" is worthless.

On this topic, explain three points:

1, the possibility of finding the symbolic solution of this system of equations is very small, so I have no intention to try.

2.DAE can be solved by ode 15s or ode23t.

When it comes to solving differential equations, you need to know the initial conditions. Please give the corresponding initial value (note that the initial value should be self-consistent).