chuan-kou-

实现世界地图的显示，可以任意控制地图的显示范围，效果不错。(Achieve world map display, you can control the map display any range of effectiveness.)

Returns matrix (n)x(n) which in which there are just prime numbers and on the other places, there are zeros.

这是对脑电波处理的共空间模式的matlab程序，主要是提取脑电波的空间特征，并进行降维，然后用支持向量机进行分类。(This is the space of brain wave processing of model of the matlab, mainly is the space of the brain wave characteristic extraction, and dimensional reduction, then classified by support vector machines (SVM). )

基于matlab实现光纤角速度传感器中准角w1对光纤环零漂的影响的仿真。(Based on matlab realize quasi-optical angular velocity sensor angle w1 zero drift of the fiber loop effects in the simulation.)

采用matlab编程语语言，可在二维图片（对称）移动鼠标，自动检测出边缘轮廓，将二维图片转化为3维立体图片。(Using MATLAB programming language, the mouse can be moved in two dimensional picture (symmetrical), the edge contour is detected automatically, and the two-dimensional picture is transformed into 3 dimensional stereoscopic picture.)

用HOUGH检测直线的时候是两个未知量,因为轴半径和相角可以确定一条直 线，在HOUGH域出现累计最大点就可能是原域中的直线。现在回到圆的检测 上来，确定一个圆需要什么：X坐标，Y坐标，半径三个未知量吧，好了，现在， 你做一个三维空间的HOUGH域，以这三个未知量作为三个轴，现在按照一定步长 进行三重循环，在最内层循环是这样的，X,Y 确定，以不同的半径进行搜索，如 果你的X,Y刚好就是实际图像的X,Y处，半径又搜索到实际真实的半径(The HOUGH detect straight when two unknown amount of axis radius and phase angle can be determined in a straight line, in the HOUGH domain cumulative maximum point may be the straight line of the original domain. Now back to the circle detection up to determine what a circle: X coordinate, Y coordinate, radius three unknowns, now, you do the HOUGH domain of a three-dimensional space, three to three unknown quantity as axis, in accordance with a certain step size triple loop, is such that in the innermost loop, X, and Y determined search for a different radius, If you X, Y, exactly is the actual image of the X, Y, at the radius radius of the search to the actual real)

简单实用的绘制Bezier曲线matlab代码，可用于初学者，这是本人计算机图形学的作业(Drawing the Bezier curve.It s the assignment for Computer Graphics)

Arima模型选择差分项，并验证序列正确性(Arima model validates sequence correctness)

本程序为EMD分解程序，包含子程序，可直接运行(EMD decomposition process)

code for Mannkendal test in matlab