test3

电力系统E格式文件解析代码，本人原创，用于公司平台中。(Power system E format file parsing code, I originally used in the company platform.)

说明：  查找所有满足条件的整数对 1两个整数都是三位数 2组成两个整数的六位数字各不相同，都不是0 3第二数是第一个数的4倍 (Find all integers satisfy the conditions for a two-digit integer is an integer of 2 consists of two six-figure varies, not the 03 second number is four times the number of first)

说明：  指定预测变量的惩罚样条基础。这是通过拟合一组相对较小的样条并惩罚积分二阶导数来完成的。传统的平滑样条曲线每次观察使用一个基础，但是一些作者指出，对于大于自由度的2-3倍的任何数量的基函数，拟合的最终结果是难以区分的。Eilers和Marx指出，如果基函数是均匀间隔的，这会导致显着的计算简化，它们将结果称为p样条。(Specifies a penalised spline basis for the predictor. This is done by fitting a comparatively small set of splines and penalising the integrated second derivative. Traditional smoothing splines use one basis per observation, but several authors have pointed out that the final results of the fit are indistinguishable for any number of basis functions greater than about 2-3 times the degrees of freedom. Eilers and Marx point out that if the basis functions are evenly spaced, this leads to significant computational simplification, they refer to the result as a p-spline.)

说明：  matlab的EMD,EEMD,CEEMD和VMD四种模态分解方式(There are four mode decompositions including EMD, EEMD, CEEMD, and VMD.)

三连棋： 人机对弈，三子连在一起就算赢。 人人对弈，规则相同。-Third, even the game: man-machine chess, three sons together even win. All game, the same rules.

说明：  用matlab求解滞回曲线骨架曲线，并得到相应骨架曲线散点(Matlab to solve the skeleton curve of hysteretic curve)

说明：  MATLAB计算孔径的菲涅尔衍射，用于计算孔径的FRESNEL衍射图样，MATLAB语言，利用MAPLE工具。(MATLAB to calculate aperture FRESNEL diffraction, used to calculate aperture FRESNEL diffraction pattern, MATLAB language, using MAPLE tool.)

token权限认证源码，适用于开发性接口功能或前后端分离(Token privilege authentication source code, suitable for developing interface functions or front-end and back-end separation)

54-多位数按键加减（闪烁）数码管显示(54- multi key buttons add and subtract (blinking) digital tube display)

说明：  三电平逆变器很详细的原理 及其SPWM控制算法(Three level inverter principle and SPWM control algorithm)