Solving Complex Differential Equations System by ode45

Let's define x y symbol.
After compute matrix, I have a differential equations system, X'=D.
X'=[x';y']. D=[3512+x*y+......;x^y+y/x+.......](too long can't be display)
How to modify the matrix so that I can use ode45 to solve it.
I think I should let x=x(1),y=x(2), but I don't know how to do.
Or maybe I should try other method to solve.
Please help me.

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2018-2-12

编辑:

2018-2-12

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