[理工] [線代]矩陣分析
Consider X = AX(t), where A is an n by n matrix. X(t) is an n by 1 vector,
n≧2, choose correct ones
At -1
(A) e = inverse laplace transform of (sI-A)
At At
(B) X(t) = e C = Ce for any n by 1 vector C
(C) (sI-A) is nonsingular for any scalar s
At
(D) e is nonsingular for any scalar t
d At At At
(E) ---e = Ae = e A .
dt
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※ 編輯: dkcheng 來自: 111.249.167.80 (11/08 20:33)
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