HMM-1.0

Border detection with first derivatives

Derive current and voltage an electric circuit with Euler Lagrange formulism

说明：  在地球科学中，误差分析非常实用，这里提供测地学常用的误差分析代码(Error Ellipses in Geodesy)

说明：  同态滤波使图像亮度较暗的区域变得可见，而高亮区也变得更加清晰，对比度增强，图像可视化程度增加。(homomorphic filtering )

programas de matlab, para aplicaciones de ax=b

杆与凸轮碰撞过程中，两者未分离时的摩擦力的变化，各种参数对摩擦的影响(The cam lever during a collision, when the frictional force changes both unseparated, the influence of various parameters on the friction)

说明：  两种生成uwb信号的方法PPM-TH,PAM-DS。(Two methods of generating signals of uwb.One is PPM-TH, the other is PAM-DS。)

本代码主要仿真了维特比解码（5,4,2）的SPC码的仿真使用以及其性能(This code simulated Viterbi decoding (5,4,2) SPC code simulation use, as well as its performance)

一个简单的遗传算法算例，可以帮助初学者理解一下遗传算法(A simple genetic algorithm example, can help beginners to understand the genetic algorithm)

i don t know what exactly it was