C_matrix_invert

The problem of detecting rectangular structures in images arises in many applications, building extraction in aerial images to particle detection in cryo-electron microscopy.

说明：  递归，是函数实现的一个很重要的环节，很多程序中都或多或少的使用了递归函数。递归的意思就是函数自己调用自己本身，或者在自己函数调用的下级函数中调用自己。 递归之所以能实现，是因为函数的每个执行过程都在栈中有自己的形参和局部变量的拷贝，这些拷贝和函数的其他执行过程毫不相干。这种机制是当代大多数程序设计语言实现子程序结构的基础，是使得递归成为可能。(Recursion, is a function to achieve a very important part of many programs are more or less use the recursive function. Recursive mean that the function of its own call to themselves or subordinates in their own function calls a function to call their own. Recursion that can be achieved because the function of each execution in the stack has its own shape parameters and local variables of the copy, the copy and the implementation process has nothing to do other functions. This mechanism is the most modern programming language implementation subroutine structure of the foundation is to make recursion possible.)

MATLAB的通用飞行器仿真MATLAB simulation of the general aircraft(MATLAB simulation of the general aircraft)

大作业上的一个迭代程序，可以供大家试用下(Great job on an iterative process, you can try for your next)

matlab中，循环语句的教学以及应用。包含部分个人总结和感悟(the cycling sentence using in matlab. including some personal feelings)

美股实时指数 在副图窗口，方便操作与美元有关的相关产品(US stock index for MT4)

最近找的求解方程的程序，可以借鉴下，挺好的(Solving equations to find the most recent program, you can learn, the very good)

LDPC编码的C语言实现。包括校验矩阵，生产矩阵的生成，编码，译码等。(LDPC coding in C language. Including the parity matrix, matrix production generation, encoding, decoding and the like.)

球赛门票的售票处规定每位购票者限购一张门票，且每张门票售价 50元。购票者中有 m位手持50元钱币，另有n人手持100元。假设售票处开始售票时无零钱。问这m+n人有 几种排队方式可使售票处不致出现找不出钱的局面。(The box office ticket sales are limited to the provisions of each ticket purchase a ticket, and the price of 50 yuan per ticket. Ticket-holders have m-bit hand-held 50 coins, and another n armed with 100 yuan. Suppose no small change when the ticket office began selling tickets. M+ n asking a few people queuing up outside ticket office can not find the money to avoid a situation.)

MemDC防止屏幕闪烁的好方法，如不使用内存DC在画图，显示时会闪烁。(memdc redraw dc)