C语言实现矩阵压缩的小程序
掌握特殊矩阵通过压缩存储算法进行压缩存储的方法，并编程实现相关功能。
基本要求：
（1） 可以对对称矩阵、上三角矩阵、下三角矩阵、三对角矩阵进行压缩存储；
（2） 原始矩阵通过键盘输入，执行后输出压缩后的矩阵；
（3） 输入在原始矩阵中的位置，能够得出压缩后的位置；
（4） 原始矩阵的行列数从键盘输入。
C language implementation of small programs to master matrix compression by compression and storage of special matrix storage method of compression algorithms, and programming-related functions. Basic requirements: (1) can be symmetric matrices, upper triangular matrix, lower triangular matrix, tridiagonal matrix, compression and storage (2) the original matrix of the keyboard input, output, after the implementation of the compressed matrix (3) input in the original matrix in the position to come to the compressed position (4), the ranks of the original matrix, the number of input from the keyboard. (2009-12-10, C/C++, 2KB, 下载20次)
继 Discrete Cosine Transform: Algorithms, Advantages, Applications (K. R. Rao and P. Yip) 之后的一本关于离散余弦变换(DCT)的快速实现算法的最新专著. 本书第五章“Integer Discrete Cosine/Sine Transforms”关于DCT整数近似实现写的非常详细和精彩, 很方便大家编程实现. 值得一提的是本书的第一作者Vladimir Britanak 一直在从事DCT, 尤其是改进的离散余弦变换(MDCT)的快速算法的研究.
This book, which is written very carefully, is a new monograph of Discrete Cosine Transform (DCT).The fifth chapter about the Integer Discrete Cosine/Sine Transforms is especially wonderful. (2009-07-01, C/C++, 2630KB, 下载167次)
不同的显示器适配器有不同的图形分辨率。即使是同一显示器适配器，在不同模式下也有不同分辨率。因此，在屏幕作图之前，必须根据显示器适配器的种类将显示器设置成为某种图形模式。在未设置图形模式之前，微机系统默认屏幕为文本模式(80列，25行字符模式)，此时所有图形函数均不能工作。
different display adapters with different graphics resolution. Even with the same display adapter, in different modes have different resolution. Thus, drawing on the screen before, must be based on the type of display adapter will be set up as some kind of display graphics mode. Failure to put in graphics mode, the system default computer screen text mode (80, 25 character line mode), At this time all graphics functions will not work. (2006-01-11, C/C++, 22KB, 下载7次)