odefcn (2)

介绍了利用Altera公司的FPGA 器件 (cyclone) 产生线性调频信号的DDS工作原理、设计方案、电路结构。并详细讨论了利用FPGA 器件实现DDS技术时, 采取的一些改进优化措施(Introduced the use of Altera' s FPGA device (cyclone) generate a linear FM signal DDS working principle, design, circuit configuration. And discussed in detail by using FPGA devices to achieve DDS technology, optimization of the measures taken by a number of improvements)

数值分析要求：第二题编成命令文件即可，其中阶乘可以单独编成函数文件在命令文件中调用，也可以直接在你所编的命令文件中利用循环语句直接计算； 第四题编成通用的程序，建议编成函数文件。提示：可以把多项式的系数和所需要求解的点设为参数。-Numerical Analysis of requirements: the second title of the command file can be compiled, which can factorial function into a separate file in order to call the document can also be made directly in your document, use the command loop direct calculation into fourth title common procedures, the proposed document into function. Tip: polynomial coefficients can be requested and the required parameters set point solution.

Web site navigation source code is an imitation of Win8 Metro style Web site navigation source code, suitable for beginners to use.

说明：  使用ga算法改进elman神经网络。优化elman参数初始值(Using GA algorithm to improve Elman neural network)

pic16f1829的i2c通信.一个pic做从机另一个做主机，主从都是硬件操作没有用软件模拟。主机发送一个值用于调整从机的pwm。(I2C communication pic16f1829. A pic from another host, master and slave are hardware operation without the use of simulation software.The host sends a value used to adjust from the machine pwm.)

说明：  如果你满足以下条件： ? 会使用电脑，但从来没写过程序； ? 还记得初中数学学的方程式和一点点代数知识； ? 想从编程小白变成专业的软件架构师； ? 每天能抽出半个小时学习。 那么你就能学会python(If you meet the following criteria: Can use a computer, but never write a program; Remember junior high school math equations and a little algebra; Want to go from programming whiz to professional software architect; I can spare half an hour to study every day. Then you can learn python)

1D 2D DFT FFT matlab手写源代码，跟matlab自带函数进行比较误差小于0.0000000001(1D 2D DFT FFT matlab handwritten source code, compared with the MATLAB function, the error is less than 0.0000000001)

说明：  matlab simulink 用于学习VIENNA整流器 只用 仅供参考学习(matlab simulink For reference only)

这是俄罗斯方快的c语言程序，请大家指教一下，这是自己边的呀！-This is the Russian side quickly c language program, please advise that this is their side!

能够实现小时（24进制）、分钟和秒钟（60进制）的计数功能具有复位功能 功能扩展：具有复位、整点报时提示、定时闹钟等功能 -Able to achieve an hour (24 hex), minutes and seconds (60 hex) is counting function with reset function extensions: with a reset, the whole point timekeeping prompt, regular alarm clock and other functions