703_QAWriteFile

能实现椭圆曲线密码的加密解密过程，功能齐全，易于实现(Can realize the elliptic curve cryptography decipher process, function is complete, easy to realize)

5/3小波变换的提升算法实现以及对于什么叫做提升的介绍。由于5/3小波是整数小波，因此非常适合于DSP处理，且经过提升，小波变换的复杂度明显降低，将此代码的提升部分移植到DSP上，可以达到实时。(5/3 wavelet transform algorithm to enhance as well as what is to enhance the introduction. Since the 5/3 integer wavelet wavelet is therefore very suitable for DSP processing, and after upgrading, wavelet transform significantly reduced complexity, the upgrading of part of this code ported to DSP, we can achieve real-time.)

观察Autocad内部数据组织的最佳工具,这个对应Autocad2(observation Autocad internal data organization the best tools, and corresponding Autocad2)

常用的画图API函数的具体使用方法，希望对画图感兴趣的人有所帮助(Commonly used drawing API the specific function to use, I hope to help people who are interested in drawing)

说明：  通过使用dxflib库，对dxf文件进行读取(Read DXF files by using the dxflib Library)

用牛顿插值法绘制曲线,同时涉及vb与excel的连接！,(Newton interpolation method are used to draw curves, at the same time involved in vb connection with excel!)

解析法面积计算,读数据文件,计算后生成结果文件,任意多边形的顶点坐标,然后 计算出面积是平方米和公顷(analytical calculation, reading data files, calculation results generated documents, arbitrary polygon vertices, then compute the area of square meters and ha)

计算机图形学_实体构造实验，典型的实体空间旋转(Computer graphics _ entity structure experiments, the typical physical space rotation)

PSCAD风机（异步机）+SVC无功补偿模型(PSCAD wind SVC)

绘图程序，可以自由绘制直线、矩形、圆、多边形，可以设置颜色和宽度，并且能够进行图元基本操作，如剪裁、缩放及填充功能。(Drawing program, free to draw lines, rectangles, circles, polygons, you can set the color and width, and can be primitive basic operations, such as cropping, scaling and filling functions.)