https://blog.youkuaiyun.com/chady8zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/chady8/article/details/132537428https://blog.youkuaiyun.com/chady8/article/details/132537428chady8Mon, 28 Aug 2023 13:57:25 +0800https://blog.youkuaiyun.com/chady8/article/details/132537382https://blog.youkuaiyun.com/chady8/article/details/132537382chady8Mon, 28 Aug 2023 13:55:37 +0800https://blog.youkuaiyun.com/chady8/article/details/132537373https://blog.youkuaiyun.com/chady8/article/details/132537373chady8Mon, 28 Aug 2023 13:55:06 +0800p = [1 0 -2 -5] 这个0一定要的这个函数相当于前面的p是多项式的系数，后面的x是值，如果x是一个值，那么这个函数就是返回的该多项式在等于x时的值；如果x是一串数值，那么返回的结果一般用来和plot一起画图，把这个函数返回值当y。对系数为p的多项式微分（differentiate），返回一个系数矩阵。]]>https://blog.youkuaiyun.com/chady8/article/details/132537340https://blog.youkuaiyun.com/chady8/article/details/132537340chady8Mon, 28 Aug 2023 13:54:04 +0800https://blog.youkuaiyun.com/chady8/article/details/132537329https://blog.youkuaiyun.com/chady8/article/details/132537329chady8Mon, 28 Aug 2023 13:53:33 +0800https://blog.youkuaiyun.com/chady8/article/details/132537320https://blog.youkuaiyun.com/chady8/article/details/132537320chady8Mon, 28 Aug 2023 13:53:03 +0800https://blog.youkuaiyun.com/chady8/article/details/132537174https://blog.youkuaiyun.com/chady8/article/details/132537174chady8Mon, 28 Aug 2023 13:52:26 +0800https://blog.youkuaiyun.com/chady8/article/details/125993698https://blog.youkuaiyun.com/chady8/article/details/125993698chady8Tue, 26 Jul 2022 14:18:09 +0800https://blog.youkuaiyun.com/chady8/article/details/117793028https://blog.youkuaiyun.com/chady8/article/details/117793028chady8Thu, 10 Jun 2021 22:56:14 +0800