在上面，插件的开发

本程序可实现快速Fourier变换，使用可直接调用-this procedure allows for fast Fourier transform, the use of direct call

ENVI二次开发示例――批处理功能的IDL源代码-ENVI Secondary Development Example- batch processing function

柱状图，走势图，附SQL数据库 画图Demo 初学可用

图像压缩编码 霍夫曼 香农 算术 游程 位平面-Image Coding Shannon Hoffman arithmetic bit-plane run-length

利用绝对坐标和相对坐标绘制直线的算法-use of absolute and relative coordinates coordinates linear mapping algorithm

STM32 Cryptographic Library Introduction This manual describes the API of the STM32 cryptographic library (STM32-CRYP-LIB) that supports the following cryptographic algorithms:  AES-128, AES-192, AES-256 bits. Supported modes are: – ECB (Electronic Codebook Mode) – CBC (Cipher-Block Chaining) with support for ciphertext stealing – CTR (CounTer Mode) – CCM (Counter with CBC-MAC) – GCM (Galois Counter Mode) – CMAC – KEY WRAP  ARC4  DES, TripleDES. Supported modes are: – ECB (Electronic Codebook Mode) – CBC (Cipher-Block Chaining)  HASH functions with HMAC support: – MD5 – SHA-1 – SHA-224 – SHA-256  Random engine based on DRBG-AES-128  RSA signature functions with PKCS#1v1.5  ECC (Elliptic Curve Cryptography): – Key generation – Scalar multiplication (the base for ECDH) – ECDSA These cryptographic algorithms can run in the series STM32F1, STM32 L1, STM32F2, STM32F4, STM32F0 and STM32F3 with hardware enhancement accelerators.

3D做2D的简单例子,用几种方法的对比说明每种方式的利弊

小波基的构造，每步均有说明，讲解很详细，值得学习-Wavelet construction, each step that has to explain in great detail, it is worth learning

你不可能有的CAD读写程序，主要用于打开CAD产生的各种文件，如：dwg,dwf等，可以提取图章信息-You can not have program for reading CAD,but you can open all kinds of files made by CAD, such as dwg,dwf etc. you get the information of picture

本软件的主要功能是用B样条曲线去拟合输入的若干个数据点，同时用圆弧逼近该曲线生成数控加工G代码。 如上图所示：线上的红点为输入点，线旁的绿点为反算出的控制点，列表框中则是数控加工G代码。 本软件还有自动判错的功能如下图所示当文本框为空或输入的点数少于两个时将会分别弹出警告消息框。本软件主要的设计思路为利用一定的算法根据已知道的型值点反求控制点后根据控制点画出B样条曲线，本软件通过VB语言实现的 -Three B-spline fitting the data points are known