Hashin - Strikman界函数

BASE64是将2进制数据转换为字符串的常用编码方式，在。NET中有现成的类可以使用，但是C++就得自己按照算法实现了。现将C++的实现共享。包含单元测试代码。

一个小游戏，用delphi做的，鸡兔同笼,数学计算！-a little game with delphi done, chickens and rabbits into the same cage, mathematical calculations!

邮政运输 2007年D题 邮政运输网络中的邮路规划和邮车调度 数学建模题目-Post transport D title in 2007 the postal routes in the transport network planning and scheduling Postal mathematical modeling topics

算术表达式求值的程序，用栈实现的，可以进行加、减、乘、除、乘方、求余计算，支持小数和括号 （数据结构作业）-arithmetic expression evaluates the procedures used stack to achieve, and can be, plus or minus, multiplication, addition, the involution, for I, support minority and brackets (data structure operations)

stm32读取mpu9150的源程序，并对航向角进行了地磁校准，代码以测试过，绝对可行。

利用意法半导体STM32F103ZET6芯片，移植uc/osii系统，通过修改os_cpu.h，os_cpu.c，os_cpu.asm等文件成功实现移植，并给出验证示例，通过跑马灯实验，ADC，DAC实验SPI等验证，

CZT和FFT的C语言实现代码，能有效滤除谐波，噪声。获得信号的频率，是一种良好的频率测量算法。-CZT and FFT of the C language code, can effectively filter out harmonics and noise. Access to the signal frequency, is a good algorithm for frequency measurement.

计算飞船相对测站的位置矢量单位矢量在赤道坐标系中的三个分量-Calculation of the spacecraft relative position vector of the station unit vector in the equatorial coordinate system of the three subscales

FDS为火灾动力学模拟软件源代码,该软件为开源项目,代码语言主要为FORTRAN,可在WINDOWS和LINUX下编译运行,详细说明可参考http://fire.nist.gov/fds/官方网址-FDS for the fire dynamics simulation software source code, the software for the open source project, code language primarily for FORTRAN, can be compiled under WINDOWS and LINUX operation, a detailed description may refer to the official web site http://fire.nist.gov/fds/

数学变换和滤波fft程序 kfour 傅里叶级数逼近 kkfft 快速傅里叶变换 kkfwt 快速沃什变换 kkspt 快速三次平滑 klman 离散随机系统的卡尔曼滤波 kkabg α-β-γ滤波-Fft math transformation and filtering procedures kfour Fourier series approximation kkfft Fast Fourier Transform Fast Walsh Transform kkfwt rapid kkspt three smoothing klman discrete stochastic system Kalman filter kkabg α-β-γ filter