这是一个生成组合序列的程序,而且是非递归的,代码非常精简,速度很快,序列是字典序的.-This is a combination of sequence generation process, but also non - recursive, code very concise, very fast, is the sequence of lexicographic.

传统方法与Strassen算法相结合的矩阵相乘算法，可以求出任意两个偶数阶矩阵的乘积！本代码简单,精简，非常好！非常巧妙！没用到什么复杂的东西！经测试完全正确！-Strassen with traditional methods based on the combination of matrix multiplication algorithm, can be obtained even arbitrary two-matrix product! The code simple, concis

计算PI后面的很多位的C程序，可以直接运行，代码精简快速-calculate Pi rapidly and accuratly