圆与圆的相交，直线与圆的相交…

最小二乘法拟和曲线，两个程序，大家-least squares fitting curves, the two procedures, we look at

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圆排列的概率算法-round with a probability algorithm

精通Matlab综合辅导与指南-proficient Matlab comprehensive counseling and guidance

判断微分方程是否为病态方程，分别用定步长、变步长和适合病态系统的数值积分方法对系统求解，并与解析解进行对比，分析每种方法的求解精度和速度。-To determine whether the pathological differential equations, were used to set step, variable step size and suitable for pathological system numerical method for solving the system, and compared with the analytic solution, analysis of each method to solve the accuracy and speed.

Mips4X4矩阵乘法

浙江大学程序设计大赛ACM2191题我自己收集的-Zhejiang University Design Competition ACM2191 that my own collection

LDPC码即低密度奇偶校验码（Low Density Parity Check Code，LDPC），它由Robert G.Gallager博士于1963年提出的一类具有稀疏校验矩阵的线性分组码，不仅有逼近Shannon限的良好性能，而且译码复杂度较低, 结构灵活，是近年信道编码领域的研究热点，目前已广泛应用于深空通信、光纤通信、卫星数字视频和音频广播等领域.现给出LDPC码的BP译码算法实现。

first come first serve

在顶端2个操作数框输入原始值，将自动显示其四则运算值，以及运算结果的平方、开根、倒数、立方、自然对数、常用对数值，还可进行角度弧度换算，阶乘和三角函数计算，以及长度、面积、质量、体积的单位换算。-In the top two operands box to enter the original value, will automatically display its four operational values, and computing the results of the square roots, reciprocal, cubic, the natural logarithm, common logarithm, but also to the angle in radians conversion, factorial and triangular function calculation, as well as length, area, mass, volume of unit conversion.