qiehuanchengshi

说明：  文字mud code,这是一款不错的文字游戏，值得一看。(shujian mud code This is a good word game, worth seeing.)

简要介绍一个梁的平面弯曲问题，ansys程序 -Plane bending of a beam problem, ansys procedures

libwindow/cvi程序，对音频信号进行频谱分析(libwindow/cvi，The audio signal spectrum analysis)

说明：  利用bls bjs 等模型计算期权隐含波动率(calculate the implied vol using bls/bjs model)

刘曼星下棋，前后得利？输入玩几个游戏，输入游戏有几个标志，最后程序输出1（先有利）或0（后有利）

旅行商问题(TravelingSalesmanProblem，TSP)是一个经典的组合优化问题。经典的TSP可以描述为：一个商品推销员要去若干个城市推销商品，该推销员从一个城市出发，需要经过所有城市后，回到出发地。应如何选择行进路线，以使总的行程最短。从图论的角度来看，该问题实质是在一个带权完全无向图中，找一个权值最小的Hamilton回路。由于该问题的可行解是所有顶点的全排列，随着顶点数的增加，会产生组合爆炸，它是一个NP完全问题。(Traveling Salesman Problem (TSP) is a classic combinatorial optimization problem. The classic TSP can be described as: a merchandiser sells goods to several cities. The salesman starts from a city and needs to go through all the cities and return to the starting point. How to choose the route of travel so that the total journey is the shortest. From the point of view of graph theory, the essence of the problem is to find a Hamilton loop with the smallest weight in a completely undirected graph with weights. Since the feasible solution to this problem is the full permutation of all vertices, as the number of vertices increases, a combinatorial explosion occurs, which is an NP-complete problem.)

基于matlab的脑电波睡眠监测，根据功率能量，判断睡眠阶段(Matlab based EEG sleep monitoring, according to the power and energy, to determine the sleep stage.)

xz compression algorithm

51单片机的MQ7 CO传感器关于模拟量和数字量的程序。可监测室内CO浓度(51 SCM MQ7 CO sensor analog and digital program. Can monitor the indoor concentration of CO)

无限制版，极影工作室的看家产品之一，交易两个货币兑进行对冲。经过实际测试，EURUSD和GBPUSD的盈利效果最好，AUDUSD和NZDUSD不是很好。按理说这两组关联都不错才对，可能是测试期间行情所致，因为无法回测双币以上ea，实盘模拟测试。(One of the Housekeeping Products of Polarshadow Studio is trading two currencies to hedge against each other. After actual testing, EURUSD and GBPUSD have the best profitability, while AUDUSD and NZDUSD are not very good. It is reasonable to say that the correlation between the two groups is good, which may be due to the market during the test period, because it is impossible to retest the EA above two coins, a real-time simulation test.)