matlab 中二阶常微分方程的数值解法y''-3y'+2y=1; y(0)=1; y'(0)=0; 用数值解法求y(0.5)数值解法有两个y值 -1.0696和0.7896 为什么会这样 符号解法只有一个值啊?
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![matlab 中二阶常微分方程的数值解法y''-3y'+2y=1; y(0)=1; y'(0)=0; 用数值解法求y(0.5)数值解法有两个y值 -1.0696和0.7896 为什么会这样 符号解法只有一个值啊?](/uploads/image/z/5170353-33-3.jpg?t=matlab+%E4%B8%AD%E4%BA%8C%E9%98%B6%E5%B8%B8%E5%BE%AE%E5%88%86%E6%96%B9%E7%A8%8B%E7%9A%84%E6%95%B0%E5%80%BC%E8%A7%A3%E6%B3%95y%27%27-3y%27%2B2y%3D1%3B+y%280%29%3D1%3B+y%27%280%29%3D0%3B+%E7%94%A8%E6%95%B0%E5%80%BC%E8%A7%A3%E6%B3%95%E6%B1%82y%280.5%29%E6%95%B0%E5%80%BC%E8%A7%A3%E6%B3%95%E6%9C%89%E4%B8%A4%E4%B8%AAy%E5%80%BC+-1.0696%E5%92%8C0.7896+%E4%B8%BA%E4%BB%80%E4%B9%88%E4%BC%9A%E8%BF%99%E6%A0%B7+%E7%AC%A6%E5%8F%B7%E8%A7%A3%E6%B3%95%E5%8F%AA%E6%9C%89%E4%B8%80%E4%B8%AA%E5%80%BC%E5%95%8A%EF%BC%9F)
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