数据加密标准

This a simple demo of how to evaluate mathematical expressions in text format, including provision for variables and functions. The code consists of three simple classes: 1) Calc - which does the main calculations, 2) Stack - which is used to push and pop intermediate operators and numbers and 3) Symbol Table. The symbol table is a collection of calc symbols, a type structure consisting of various elements, including the expression name, function name, and the final value of the expression The evaluation procedure is done in three steps: 1) simplify the expression by removing all the elements within () and storing them in subexpressions within the symbol table. 2) Each of these sub expressions are then converted to RPN format (Reverse polar notation) and evaluated 3) Finally, the main expression is converted to RPN and evaluated-This is a simple demo of how to evaluate mathematical expressions in text format, including provision for variables and functi

在tms320VC54X上可以实现FIR 功能已经验证   需要的可以直接移植

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MATLAB广泛应用于线性代数、自动控制理论、数理统计、数字信号处理、时间序列分析、动态系统仿真等领域。因此如果在VC中对MATLAB进行调用将大大减少编程的工作量、保证程序的准确性，并且继承了VC++强大的功能，提高开发效率，-MATLAB widely used in linear algebra, automatic control theory, mathematical statistics, digital signal processing, time series analysis, dynamic simulation, and other fields. Therefore, if the VC right call MATLAB programming will greatly reduce the workload to ensure the accuracy of procedures, VC and inherited the powerful functions, improving the development efficiency,

vc编写 计算圆周率程序-vc preparation procedures calculated pi

傅立叶变化，演示源码，可以很快入门，很好的小东西-Fourier changes demo source can be quickly entry, the small things well

这个程序我用了两个月编写，功能已经和完整了，真是个好东西！好用着呢-this process I have spent two months of preparation, functions and integrity, is a good thing! Handy ability in

C科学工程程序库-C library science project

产生随机数相关的C程序-generated random numbers related to the C program

基于opencv和Imaging Control的三相机同时成像继续。