产生 S型函数 产生 S型函数

It is a presentation on scale invaraint. It is quite helpful for biggeners

SQL与网页学习教程-SQL tutorial learning website

modelsim是一款强大的仿真软件，针对verilog,vhdl设计进行全面调测-modelsim is a powerful simulation software for verilog, vhdl design of a comprehensive test tone

OCI编程参考的例子程序，用来学习OCI编程-OCI PROGRAM

国外最新出版的惯性导航系统专著，全英文版，对全面了解惯性知识有很大的帮助，能提升读者的理论水平。-Published abroad, the latest monograph on inertial navigation system, all in English, knowledge of a comprehensive understanding of the inertia of great help to enhance the reader" s theoretical level.

Maximum Security (First Edition) 网络安全　英文版-Maximum Security (First Edition) English network security

这是《Logistic 回归模型---方法与应用 》作者：王济川 郭志刚的书中有关的数据-This is the "Logistic regression model-- Methods and Applications" Author : Wang Chuan Guo Zhigang of the data book

基于c的数字信号编程-based digital signal Programming

C++沉思录(中文）-C meditation (Chinese)

人们在使用SQL时往往会陷入一个误区，即太关注于所得的结果是否正确，而忽略了不同的实现方法之间可能存在的 性能差异，这种性能差异在大型的或是复杂的数据库环 -people in the use of SQL often mired in a dangerous zone, that is too interested in the results is correct, neglect of different implementations may exist between the performance difference This difference in the performance of large or complex database Central