segmented-function

数据管理、记录浏览、借还操作（借书、还书、续借、更新、删除、添加）等功能。(Data management, record visit, through further operations (borrowing, but also books, renew, update, delete, add) and other functions.)

Some algorithms in the realm of ultrasound

power_zener.rar,功率电子领域matlab仿真文件，已经验证过，程序运行正常(power_zener.rar,Power electronics field matlab simulation file, has already been verified, the normal operating procedures)

利用BLT方程计算四边形环形网络，管道特性阻抗均为50欧姆，第五根线另一端接幅值为1V的电压源。可求解各个节点的电压响应与时域响应。(Use BLT equation quadrilateral ring network, pipelines are 50 ohm characteristic impedance, the other end of the fifth wires amplitude of the voltage source of 1V. Voltage response can be solved and the time-domain response of each node.)

这是bpsk的调制程序代码，它基于matlab环境编写，用于验证调制的效果是否达到设计要求。(qpsk)

说明：  A DS Spread Spectrum simulation code.

求解偏微分方程，使用LF格式求解程序，具体方程见程序(Solution of partial differential equations, using the LF format solver)

概率密度函数pdf画图，给出最大、最小的范围，可调整分辨率(Probability density function pdf drawing, give maximum and minimum range, adjustable resolution)

基于SVM的混沌时间序列分析 把SVM优化算法用于混沌时间序列分析 可以得到优于一些方法的结果(SVM-based chaotic time series analysis of the SVM optimization algorithm for chaotic time series analysis methods can be superior to the results of)

在matlab环境中利用遗传算法解决旅行商问题。(In the matlab environment, the use of genetic algorithm to solve the traveling salesman problem.)