DCT变换，产生了DCT变换

所谓Johnson 计数器，其实说白了无非就是复杂一点的流水灯实验。流水灯加上了按键控制，流水灯的开启关闭和变化方向在按键的控制下进行。本实例是带停止控制的双向4bit Johnson 计数器，可以通过LED 灯直观的在学习板上进行演示。

编译原理课程设计java版源代码，有运算符优先算法、DFA、LL1、LR

这是一个用java语言编写的，用二分法求解某个函数在某个指定区间上的根，方便实用。-This is a java language used by solving a dichotomy at a designated function on the root zone, convenient and practical.

二分查找(Binary Search)　二分查找又称折半查找，它是一种效率较高的查找方法。　二分查找要求：线性表是有序表，即表中结点按关键字有序，并且要用向量作为表的存储结构。不妨设有序表是递增有序的。

方程求根的数值实验，利用Newton迭代算法，求出所给方程的跟。-Equation Roots of numerical experiments using the Newton iterative algorithm are obtained with the given equation.

这是一个图片，是全国大学生数学建模的一个图片-This is a picture, the National Mathematical Contest in Modeling a picture

常用算法的C程序。主要内容包括多项式的计算、复数运算、随机数的产生、矩阵运算、矩阵特征值与特征向量的计算、线性代数方程组的求解、非线性方程与方程组的求解、插值与逼近、数值积分、常微分方程组的求解、数据处理、极值问题的求解、数学变换与滤波、特殊函数的计算、排序和查找。-Commonly used algorithm of C procedures. Include polynomial terms, complex computation, random number generation, matrix operations, matrix eigenvalue and eigenvector calculations, linear algebra equations, nonlinear equations with the equations, interpolation and approximation, numerical integration, solving ordinary differential equations, data processing, for solving extremum problems, mathematical transformation and filtering, the calculation of special functions, sorting and search.

he 8-puzzle will be represented by a 3x3 list of lists positions where the empty box will be represented by the value 9, as shown below: [[9,1,3],[5,2,6],[4,7,8]] Possibility Solution: Only half of the initial positions of the 8-puzzle are solvable. There is a formula that allows to know from the beginning if you can solve the puzzle.To determine whether an 8-puzzle is solvable, for each square containing a value N is calculated how many numbers less than N there after the current cell. For example, to the initial status

实现玛雅两种日历之间的转换，只要输入case数和一种日历，就可得出另一种日历表示。-achieve Mayan calendar between the two conversion, as long as the imported case of a calendar and a few could come up with a calendar said.

C4.5决策树算法，经典，易于理解，中间存在一点点的小问题，希望大家多多指点，帮忙解决