memdc

一个使用数学方法生成波形声音文件的源代码，可以载入预置数学公式，保存8位和16位单声道声音文件，可以设置振幅、频率、持续、采样等参数，可以调整波形斜面，回声。 这个代码值得推荐！(The use of mathematical methods to generate a waveform sound files of source code, can load preset mathematical formula, save 8 and 16-bit mono sound files, you can set the amplitude, frequency, continuous, sampling and other parameters, you can adjust waveform slope, echo . It is recommended this code!)

an a dedicated hyperterminal

说明：  Arduino hx711库文件，在编写程序省去很大力气，很好用的头文件，大力推荐(Arduino hx711 library files, eliminating the need to write programs in a lot of effort, a good use of header files, strongly recommended)

reading datas from a text file classfiying and creating statistics about the datas

说明：  matlab代码，实现DCT变换matlab代码，实现DCT变换(matlab code, DCT transform matlab code, DCT transform)

主要是用c语言实现matlab中的fftshift函数的，(Mainly used c language matlab in fftshift function,)

LeetCode OJ:Search in Rotated Sorted Array

说明：  本程序是数制转换问题，为十进制数字和罗马数值间的相互转化，本程序用的是函数调用法(This program is the number of system conversion problems, in order to decimal numbers and value of the inter-conversion of Rome, this program using a function call method)

说明：  2015全国硕士研究生数学建模题目A：水面舰艇编队防空和信息化战争评估模型(2015 national graduate students mathematical modeling problem A)

用牛顿迭代法求方程 f(x)=x³ -x² -1=0 在x。=1.5附近的一个实根。取§=0.000001，取最大迭代数为60. (With Newton iteration equation for f (x) = x ³-x ² -1 = 0 in x. = 1.5 near the root of a real. Take § = 0.000001, take the largest number of 60 iterations.)