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b spline surface for use

Python 100.00%

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求B曲面的偏导

您好！请问这个能对插值得到的B曲面求偏导吗？具体如何实现呢？

一些代码中的小细节

首先感谢作者的开源代码！！！！
在看的时候也有一些问题想和大家一起交流探讨
首先是BaseFunction中k从0开始取还是从1开始取会有影响嘛？（Heath教材上是从0开始取的）
然后这个generate knot function 的motivation是啥？自己写的意识到了节点集需要延拓，但是不知道为何是像knot这样延拓的。
最后就是为什么要用uniform_spaced或者centripetal等？可不可以直接用原来数据集的点呢？比如给的11个点就是np.linspace(-5,5,11)就直接给这11个延拓，生成knot。
才疏学浅，再次感谢作者！！！

杂点拟合

您好我有许多杂点，但是貌似拟合之后不是很平滑，请问怎么解决，谢谢

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