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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+........
8 years 前 | 0 个回答 | 0
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extract part of matrix which consist of variables
Suppose that there is a matrix D(x,y)=[x+y ; x-y; x^y] How to extract first row, like D1=x+y? syms x y D=symfun(...
8 years 前 | 0 个回答 | 0
