piecewise polynomial space

例句：

1. 1.This algorithm uses a piecewise polynomial to solve the problem.
   这个算法使用分段多项式来解决这个问题。
2. 2. The piecewise polynomial function has been widely used in engineering and science.
   分段多项式函数在工程和科学中得到了广泛的应用。
3. 3. The piecewise polynomial method is an effective way to solve complex problems.
   分段多项式方法是一种有效的解决复杂问题的方法。