拉格朗日差值, 拟合多点的数据成一条曲线-Lagrangian interplation

本文件中包括蓝屏技术，将object植入图像中，图像连接。内部附有操作说明。是作业最终版本，所以绝对能用。而且代码可读性很强。-This document includes a blue screen technology, the object implanted in the image, the image connection. With internal instructions. Is the final version of the job, so it is absolutely

distancematrix is a matrix between interplation points and the test points