Threshold

猜首府 反复提示用户输入一个州的首府，并检测是否正确(Guess the capital repeatedly prompts the user for the capital of a state, and to detect the correct)

irrilicht开源引擎，用于windows，mac等各个平台的图像开发(irrilicht engine， it‘s opensource)

基于混沌置乱的DCT域灰度级盲水印算法 需要的可以看下~(Based on Chaotic Scrambling DCT-domain blind watermarking algorithm for gray-level needs can facie ~)

支持向量机在小波包去噪方法中的应用，小波包分解和svm相结合(Support vector machines in wavelet packet denoising of wavelet packet decomposition and combination svm)

利用udf定义动网格的刚体运动，以使刚体能按照需要做任意的运动。(Use udf defined dynamic grid rigid body motion, so that just needs to be done in accordance with any physical exercise.)

一个生成NURBS曲面的程序，是在Visual下运行的(A NURBS surface generation program is run under Visual)

很好的解析bmp图片的源代码，很不错的初学者的例子，换页大家下载(Very good analytical bmp image of the source code, it is a good example for beginners, for everyone to download page)

线性反投影算法（Linear Back Projection，简称 LBP）又称累加法，是最早使用的一种简单（ECT图像重建）成像算法。它将通过某点的所有投影射线进行累加，再反向估算出该点的密度值。从成像观点分析，它是不完全的雷登逆变换（完整的雷登逆变换包括微分、希尔伯特变换、反投影和归一化等步骤）。(Linear back projection algorithm (Linear Back Projection, referred LBP), also known as cumulative method, is the first to use a simple (ECT image reconstruction) imaging algorithms. It accumulates all projection rays through a point, then reverse the estimated density value of the point. From the image point of view analysis, it is not exactly the inverse transform Leiden (Leyden complete inverse transformation involving differential Hilbert transform backprojection and normalization steps, etc.).)

说明：  这是用c语言实现的图形的几何变换算法，里面有许多小的功能(This is achieved using c language graphics geometric transformation algorithms, there are many small function)

本软件能根据轧制工艺条件快速准确地计算出轧制力，并已经通过实际检测，与实际值误差在10％之内，建议教学轧制力时采用(software based on the rolling conditions quickly and accurately calculate the rolling force, and has adopted effective detection, and the actual value of the 10% error within the recommended teaching rolling force used.)