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If the system is [[time-invariant]], we can define φ as:
:<math>\phi(t, t_0) = e^{A(t - t_0)}</math>
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add reference |
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Line 33:
|}
If the system is [[time-invariant]], we can define φ as:
:<math>\phi(t, t_0) = e^{A(t - t_0)}</math>
| |||