PE_Caculation

复合辛普森 改进欧拉法 高斯消去法 复合梯形法(Improved Euler Method Composite Simpson composite trapezoidal method of Gaussian elimination)

SPN的差分密码分析，建议选取的明密文对数量为8000+，太小可能结果有偏差(SPN Differential cryptanalysis, ciphertext clear recommendations for selected number of 8000+, too small deviations may result)

个人编写的应用于机械行业的arx开发函数，足够用的(Individual applications written in the mechanical industry ARX development function)

能量重心校正法，进行频谱的幅值修正，算法可以参见谢明、丁康老师的频谱分析文章。(Energy center of gravity correction method, the amplitude correction of the spectrum, spectrum analysis of the algorithm can be found in Xie Ming, DING Kang teacher article.)

输入一列整数，选择需要求子列的长度。在求最长子列，(Enter a list of integers, select the Child-giving the length of the column. Having failed to achieve the longest sub-columns,)

关于哈弗曼编码器译码器的高级语言实现的源代码及报告(sdrfejwirfheuifhewuifhgewi)

使用matlab的仿真平台simulink来实现直接序列扩频码变换为双极性码的转换 (Matlab simulation using simulink platform to achieve the direct sequence spread spectrum code transformation for bipolar code conversion)

随机自动分班级排学号软件 一个朋友在中学教书，经常为排班级排学号头痛，于是做了这么一个小软件让朋友用用，反馈感觉上还不错。 本软件适用于小学升初中只有两科成绩,且成绩只有A,B,C三个标号. 说明一下:该随机自动分班级排学号软件, 不仅有有考虑到,成绩的均匀, 还考虑到生源地(即原毕业学校),性别,及班级学生个数的均匀. 一般来说,每个班级的总体都比较均匀 具体的说明，可以运行一下本软件，点一下生成源文件样本，然后参考一下即可。(Random Automatic Class scheduling software school No. A friend of mine to teach in secondary schools, often for the Class Pai Pai Student headache, then to do so, a small software that allows friends to use, and feel pretty good feedback. This software applies to primary and junior high school only two subjects, and the results only A, B, C grade three. Explain: The random Automatic Class No. Pai school software, not only has to take into account, results in uniform, but also taking into account the students (ie the original graduate schools), gender, and class number of the uniform. Generally speaking, each Class are relatively uniform overall specific, you can run like the software, click the source file to generate samples, and then reference click.)

梯度下降法是最早最简单，也是最为常用的最优化方法。梯度下降法实现简单，当目标函数是凸函数时，梯度下降法的解是全局解。一般情况下，其解不保证是全局最优解，梯度下降法的速度也未必是最快的。梯度下降法的优化思想是用当前位置负梯度方向作为搜索方向，因为该方向为当前位置的最快下降方向，所以也被称为是”最速下降法“。最速下降法越接近目标值，步长越小，前进越慢。(The gradient descent method is the earliest and most simple and most commonly used optimization method. The gradient descent method is simple to realize. When the objective function is a convex function, the solution of the gradient descent method is a global solution. In general, the solution is not guaranteed to be the global optimal solution, and the gradient descent method is not necessarily the fastest. The optimization idea of gradient descent method is to use the current position negative gradient direction as the search direction, because the direction is the fastest descending direction of the current position, so it is also called the steepest descent method. The faster the slowest descent approach is closer to the target, the smaller the step, the slower the progress.)

psasp和matlab交互仿真接口程序(psasp and matlab interactive simulation interface program)