题目很短:一个立方体,切N刀,最多能把这个立方体切成几个空间。 (via)
Archives for the ‘Math/数学’ Category
数学笔记 – Z型线段分割平面问题
Tuesday, 1 December 2009
原题:What’s the maximum number of regions de nable by n zig-zag lines, each of which consists of two parallel in nite half-lines joined by a straight segment?