interpolation

国外最近的一篇变步长nlms仿真，该文件有文中的几种仿真(Recent foreign nlms a variable step simulation, there is the text of the document of several simulation)

用编译的科学计算器，代码详细，清楚。设计简单。(Scientific Calculator with compiled code in detail, clearly.)

之前找不到合适精度的log2x函数的定点化源码，经过实现并验证后，发上来大家一起学习(fixed version for log2x)

Generic templates of algorithms for sparse matrixs

ar谱估计，分别用了最小二乘法和yulewalker法。(ar spectrum estimation, least squares method were used and yulewalker law.)

对于给定某一线性时不变网络（不含受控源），根据网络属性及结构，通过编程实现自动生成其关联矩阵A和一个树。(Given a linear time-invariant network (excluding controlled source), according to the network properties and structure of the automatically generated by programming its associated matrix A and a tree.)

实现矩阵的四则运算，并能计算矩阵的特征值和特征向量(Four arithmetic operations of matrices are realized, and eigenvalues and eigenvectors of matrices can be calculated.)

四分之一圆柱贴体网格的生成，可以调节大小(Fourth cylindrical body-fitted grid generation, you can adjust the size of the)

在uVision环境下用C编程，用离散傅里叶变换可以计算出频率的值(In uVision environment using C programming, using discrete Fourier transform frequency value can be calculated)

基于全周傅立叶的实时阻抗测量 基于全周傅立叶的实时阻抗测量(Impedance measurement)