Mathematica 10 的新功能 › 增强的微积分和微分方程 ›

计算有事件的 ODE 的符号解 

用 DSolve 解有状态相依事件的常微分方程（ODE）.

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这是一个弹力球系统.

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当事件发生时停止对 ODE 的积分.

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当事件发生一次后将其删除.

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指定一个变量并在事件间维持其值不变.

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