Does a first order system with a solution that contains the complex number i have any meaning?(adsbygoogle = window.adsbygoogle || []).push({});

e.g. dy/dt = iy

therefore y = e^(it) = isin(t) + cos(t)

Follow-up question. Can I breakdown a second order system into two cascaded first order systems that have complex roots?

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# Dy/dt = iy

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