The Z3, Zuse's third computer in a series of four, used the simple binary system for performing complicated mathematical computations -- its outstanding feature.
Z3是Zuse的一系列四台中的第三台计算机，使用简单的二进制完成复杂的数学计算 —— 其显著特点。
2
Mathematical programming is important in feature selection, clustering and regression, and these are the problems, which are solved imminently.
数学规划在特征提取、聚类和回归等方面有很重要的应用，而这些都是数据挖掘亟待解决的问题。
3
The paper analyses the mathematical structure, technical feature, algorithm type and challenges of user preference extraction algorithm.