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本问题早有求法,这里谈的是不同的一个求法。大家知道,方程(dy)/(dt)=Ay 有形如y=e~(λt)c 的解,其中λ是纯量,c 是不为零的常数矢。从而
This question has long been sought. Here is a different approach. It is well known that the equation (dy) / (dt) = Ay has a solution of the form y = e ~ (λt) c, where λ is a scalar and c is a constant vector that is not zero. thereby