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houghtransform for circle detection in images.

说明：  对光信号的脉冲宽度调制，采取c语言和汇编语言结合起来提高准确率，两种语言都有其优越性。(Light pulse width modulation signals, to take c language and assembly language to improve the accuracy of combining the two languages has its advantages.)

把当前图形窗中已存在的任何字对象拖放到所需的位置；向当前图形窗输入字对象，并拖放到任何所需位置。 (align current graphics window which has been in existence for the drag and drop any object to the word for the position; current graphics to the window object input characters, and drag-and-drop to any required position.)

锁相环和微分方法的介绍和matlab仿真步骤(Phase-locked loop and an introduction to the differential method and the matlab simulation steps)

让ARToolKit支持MQO模型所需的所有函数实现代码，均在对应的GLMetaseq.c中。(Let ARToolKit supports all the functions needed to MQO model codes, both in the corresponding GLMetaseq.c.)

说明：  通过c++程序实现的四类不同的地层数据的AVO正演模型(AVO forward model of four kinds of different stratum data realized by C + + program)

讨论调和级数的变化规律。画出部分和数列 变化的折线图，观察变化规律；引入数列： 作图观察其变化，猜测是否有极限；引入数列：，作图观察其变化，寻找恰当的函数拟合；探讨调和级数的部分和数列的变化规律是什么？(Discussion to reconcile a series of changes in the law. Draw the line chart of some of the several columns change, observed changes in law the introduction of the series: mapping to observe the changes, guess whether there is a limit the introduction of the series:)

可以求解在一般三维场模拟中的椭圆方程（泊松方程）(Three-dimensional Poisson equation can be solved)

matlab中用C语言编写sfunction, 实现读取文件中的数据，应用库"stdio.h"(matlab using C language sfunction, realize the data read from the file, the application library stdio.h)

本程序实现了对数极坐标的基本变换，可以在图像处理、稳像等领域进行应用(logpolar algorithm)