Newton迭代法解非线性方程组

C语言版本的矩阵库，目前世界上最流行的三大矩阵运算库之一，这是修正版本，我自己改了几个地方（按照官方要求）-C language edition matrix library , now in the world the most popular three greatest matrixeses carries to calculate the one of the library , this is to revises the edition, myself changed a few places( request according to the authorities)

用For/Next循环语句编写程序计算自然对数之和，并要求先定义求a到b的自然对数之和的函数为Nlogarithm(a,b),然后单击“求自然对数之和”按钮时调用该函数。

图像阈值分割---迭代算法 1.处理流程：        1.为全局阈值选择一个初始估计值T(图像的平均灰度)。        2.用T分割图像。产生两组像素：G1有灰度值大于T的像素组成，G2有小于等于T像素组成。        3.计算G1和G2像素的平均灰度值m1和m2；        4.计算一个新的阈值:T = (m1 + m2) / 2;        5.重复步骤2和4,直到连续迭代中的T值间的差小于一个预定义参数为止。     &

采用libtommath大数库对中国剩余定理算法通解进行改写，支持128位的大数实现，已测试成功。

#define MSGHEADER "MICROCALC - A Turbo C Demonstration Program" #define MSGKEYPRESS "Press any key to continue." #define MSGCOMMAND "Press / for the list of commands" #define MSGMEMORY "Memory Available:" #define MSGERROR "ERROR" #define MSGLOMEM "Not enough memory to allocate cell."-# define MSGHEADER "MICROCALC-A Turbo C De monstration Program "# define MSGKEYPRESS" Pr ess any key to continue. "# define MSGCOMMAND" P keypress/for the list of commands "# define MSGMEMO RY "Memory Available : "# define MSGERROR" ERROR "# define MSGLOMEM" N ot to allocate enough memory cell. "

把秒生成时间格式-put seconds generation time format

部分PKU上的源码，希望对大家有所帮助。其中包括所有提交代码，里面均有提示-PKU part on the source, and they hope to help everyone. Including all submitted code, which has prompted

Canny 1986 年由约翰 F.Canny 开发的。此外认识到许多如优化探测器，Canny 算法的目的是满足三个主要标准

%  1-D信号压缩传感的实现(正交匹配追踪法Orthogonal Matching Pursuit) %  测量数M>=K*log(N/K),K是稀疏度,N信号长度,可以近乎完全重构 %  编程人--香港大学电子工程系 沙威  Email: wsha@eee.hku.hk %  参考文献：Joel A. Tropp and Anna C. Gilbert %  Signal Recovery From Random Measurements Via Orthogonal Matching %  Pursuit，IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 53, NO. 12, %  DECEMBER 2007.

一个简单的计算器,用MATLAB开发-a simple calculator, developed using MATLAB