此代码为两个大整数的乘法运算，支持无限多位数的乘法，只要硬件资源允许。-this code for the two large integer multiplication and support an infinite number multiplication of the median, as long as the hardware resources allow.

dot NET 下的大整数乘法，使用FFT变换进行计算，提高了运算效率

n的阶乘.rar 可以求数的阶乘 是以递归算法为基础的 对学习算法设计与-n factorial. Rar can help factorial number of recursive algorithm is based on the learning algorithm design and