C程序-彩票旋转矩阵详细了解： 实际上，旋转矩阵并不是教如何选号的，而是教你如何科学地组合号码。从它的别名“聪明组合”我们就可以知道了！站在数学角度看来，旋转矩阵属于一个典型的组合设计问题，进一步讲，是属于组合设计中的覆盖设计的问题。-C program- to learn more about rotation matrix Lottery: In fact, the rotation matrix are not taught how to选号, but teach you how to combine science and numbers. Alias from its " smart combination of"　we can know! Standing mathematical point of view, rotation matrix is a combination of a typical design problem, and further said, is a combination of the design of the cover design.