prsem

说明：  字典树的基本功能是用来查询某个单词（前缀）在所有单词中出现次数的一种数据结构，它的插入和查询复杂度都为O(len),Len为单词（前缀）长度，但是它的空间复杂度却非常高，如果字符集是26个字母，那每个节点的度就有26个，典型的以空间换时间结构。(The basic function of the dictionary tree data structure is used to query a number of times a word (prefix) appears in all the words, which insertion and query complexity are O (len), Len is a word (prefix) length, but its space complexity is very high, if the character set is 26 letters, and that the degree of each node will have 26, the typical structure of space for time.)

Dynamic programming Neural network presentation

LDPC 码matlab程序 ，可用matlab直接运行，输出为BER曲线(LDPC code matlab program, matlab can be used directly to run, the output for the BER curves)

多种群的遗传算法数值优化；速度快，求解精准；(Numerical optimization of genetic algorithms for multiple groups)

matlab已调好，并加上了注释。希望对大家有帮助！(matlab)

this program demonstrates the use of the LMS algorithm in system identification

基于牛顿-拉夫逊算法的电力系统潮流计算，简单易懂。(The power flow calculation based on Newton-Raphson algorithm, which is easy to understand.)

Json parsing and fragments. uses for tests and make tutorials

最小二乘用来计算非线性系统的参数，还可以对非线性系统进行仿真。(The least square is used to calculate the parameters of the nonlinear system, it can also nonlinear system simulation.)

牛顿法插值在matlab中应用，适合数值分析初学者的应用(newton)