已知，用Lagrange线性插值求的近似值为______.http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/8f89f96965e04ca088793581a88b80ab.png
举一反三
- 已知，用Lagrange线性插值求的近似值为______.http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/2268ea20649747c78ad168ea8627f2ae.png
- 已知，则的Lagrange插值多项式为______.http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/181ceea87cf248bbbb7146045a423f89.png
- 已知 ， 则 的 Lagrange 插值多项式为 ______.http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/181ceea87cf248bbbb7146045a423f89.png
- 当 时， ，求 的二次插值多项式为 .http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/cd8a5f6120864650afa1335344aea896.png
- 设<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/bed4f91f4fec44358e1cad3163fc6b90.png" />是在区间<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/a58a11f71a434f2ab38a2f347802f010.png" />上的<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/a392447e03794318affaa2b03bb5967b.png" />的分段线性插值函数，以下条件不是<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/c00fe77a8291453a8cb2577eb68735ad.png" />必须满足的条件是________________. A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/cf6e811a4488413fae8f1839e4d098ea.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/bb93b2d7d02245878ec51e2986c97b5d.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/ec6692c00c2e49b6adbf9b0493638b81.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/214f277da4154f58a43751f80b09d959.png" />