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DES
DES加密算法，初始置换、密钥置换、密钥循环、密钥压缩置换、数据扩展置换、、S盒替换、P盒置换、末置换
(DES encryption algorithm, the initial replacement, key replacement, key loops, key compression replacement, data expansion permutation,, S cartridge replacement, P cartridge replacement, replacement end)
- 2021-04-05 22:19:03下载
- 积分：1
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矩阵快速求逆算法
// 矩阵求逆在3D程序中很常见，主要应用于求Billboard矩阵。按照定义的计算方法乘法运算，严重影响了性能。在需要大量Billboard矩阵运算时，矩阵求逆的优化能极大提高性能。这里要介绍的矩阵求逆算法称为全选主元高斯-约旦法。// // 高斯-约旦法（全选主元）求逆的步骤如下：// // 首先，对于 k 从 0 到 n - 1 作如下几步：// // 从第 k 行、第 k 列开始的右下角子阵中选取绝对值最大的元素，并记住次元素所在的行号和列号，在通过行交换和列交换将它交换到主元素位置上。这一步称为全选主元。// m(k, k) = 1 / m(k, k)// m(k, j) = m(k, j) * m(k, k)，j = 0, 1, ..., n-1；j != k// m(i, j) = m(i, j) - m(i, k) * m(k, j)，i, j = 0, 1, ..., n-1；i, j != k// m(i, k) = -m(i, k) * m(k, k)，i = 0, 1, ..., n-1；i != k// 最后，根据在全选主元过程中所记录的行、列交换的信息进行恢复，恢复的原则如下：在全选主元过程中，先交换的行（列）后进行恢复；原来的行（列）交换用列（行）交换来恢复。// // 实现(4阶矩阵)
- 2022-02-20 01:24:12下载
- 积分：1
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4
说明： proteus仿真!适合C51单片机初学
- 2010-10-18 11:01:27下载
- 积分：1
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STM32F103C8T6超声波测距源码
ALIENTEK STM32开发板SYSTEM文件夹，采用V3.5库的头文件，使得代码可以完美移植到库函数里面使用，不过注意，在新建工程的时候，请在：Options for Target-->C/C++ 选项卡里面 Preprocessor Symbols 栏定义你的STM32芯片容量。比如:ALIENTEK 战舰STM32开发板用户，使用的是大容量的STM32芯片，则在Define栏输入：STM32F10X_HD
对于STM32F103系列芯片，设置原则如下：
16KB≤FLASH≤32KB 选择：STM32F10X_LD
64KB≤FLASH≤128KB 选择：STM32F10X_MD
256KB≤FLASH≤512KB 选择：STM32F10X_HD(ALIENTEK STM32 development board SYSTEM folder, using V3.5 library header file, so that code can be perfectly transplanted to the library function to use, but note that in the new project, please: Options for Target - > C/C++ tab in the Preprocessor Symbols column to define your STM32 chip capacity. For example: ALIENTEK warship STM32 development board users, using a large capacity STM32 chip, in the Define column input: STM32F10X_HD
For STM32F103 series chips, the setting principles are as follows:
16KB < FLASH < 32KB Selection: STM32F10X_LD
64KB < FLASH < 128KB Selection: STM32F10X_MD
256KB < FLASH < 512KB Selection: STM32F10X_HD)
- 2019-01-15 13:31:52下载
- 积分：1
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sizupation-turbo
wcdma协议中的turbo码链路仿真,基于bpsk,可以测试误比特率和误帧率等性能(The turbo code link simulation in wcdma protocol, based on bpsk, can test the performance of bit error rate and frame error rate.)
- 2018-07-27 22:33:49下载
- 积分：1
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Modern-Periodic-Table-Project-in-C
Modern Periodic Table Project in C.
The Modern Periodic Table project in C is a simple console application built without the use of graphics. It is developed using the C programming language for the purpose of storing name, symbol, atomic number, atomic weight, and some important properties as well as to display them as per requirement of the user. The source code for this project is complete and totally error free, and we warmly welcome any feedbacks and suggestions.
- 2014-12-03 16:24:18下载
- 积分：1
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GJP
计算高阶矩计算高阶矩计算高阶矩计算高阶矩计算高阶矩计算高阶矩计算高阶矩计算高阶矩计算高阶矩计算高阶矩(Trans For Gao)
- 2017-05-22 12:59:43下载
- 积分：1
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AlphaGod-ipmsg
运用curses图形库，在linux C下的飞鸽传书。(Using curses graphics library, Flying Pigeon biography under Linux C.)
- 2020-06-16 14:34:28下载
- 积分：1
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ModbusV1.024
Modbus调试精灵采用vc编写，运行时不需要其它任何文件。可以调试具有modbus协议的所有设备，软件非常小巧，但功能强大，是现场工程调试人员必备软件。(Modbus debug vc prepared using the wizard, run-time does not require any other document. Can debug Modbus protocol with all the equipment, software is very compact, but powerful, is the field engineering staff necessary software debugging.)
- 2007-09-27 08:53:58下载
- 积分：1
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yaxiangsu1
亚像素方面的相关源码!!!相信对你的学习会有帮助!(Related to source sub-pixel area!!! That would be helpful to your learning!)
- 2010-11-29 16:41:02下载
- 积分：1
