Here we consider trigonometric splines of Order 2 . The results which were parallel with the results about polynomialsplines functipn are obtained.
本文研究一类二阶三角样条,得到了与三次多项式样条平行的一些结果。
2
A global smoothing method based on polynomialsplines is used to estimate the coefficient functions in functional-coefficient linear autoregressive models.