Pablo Alonso
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Hello, I've got the problem. Can any one help me with that error?
syms x(t) D3x = diff(x, t, 3); D2x = diff(x, t, 2); Dx = diff(x, t); eqn = diff(x, t, 2)+2*diff(x, t)+x == 2; cond = [x(0)=...
1 year 前 | 2 个回答 | 0