closed convex hull

例句：

1. 1. The algorithm calculates the closedconvex hull of a setof points efficiently.
   这个算法能够高效地计算一组点的封闭凸包。
2. 2. In computer graphics, the closed convex hullis used to determine the bounding boxfor an object.
   在计算机图形学中，封闭凸包被用来确定一个对象的边界框。
3. 3. The closed convex hull problem is a classic example of acombinatorial optimization problem.
   封闭凸包问题是组合优化问题的经典例子。