二次张力样条函数

Quadratic Tensive Spline Function

本文给出了一种新的张力样条函数形式,并用最小二乘法导出了一种最简单的二次型,其矩阵为三对角型,使问题的求解十分简单。在地形处理上,绘制等高线及求曲线的交点变得十分容易。

This article provides a new mode of the tensive spline func- tion and develops one of the simplest quadratic forms by the“Least Square”method. The matrix of the quadratic form has a tridiagonal shape which makes the solution of problems easier.With it,items such as the treat- ment of topography,contour drawing and the finding of the intersections of curves can be handled in a simple fashion.