不错的矩阵求逆的小程序

用C编写的最速下降法（解方程），注意矩阵A是正定对称的-prepared by the steepest decline (equation solution), the attention to the matrix A is symmetric positive definite

计算子午圈半径M 计算卯酉圈半径N 计算玮圈半径r 计算经线弧长Sm 计算纬线弧长Sn 计算球面梯形面积 计算最大角度变形 计算球面极坐标-calculated Meridian circle radius circle conveniently calculated M N calculation Wei radius circle radius r calculated meridian arc Sm calculated latitude arc Sn calculated spherical long trapezoidal area of the greatest deformation angle spherical polar coordinates

对于无线网络，载波传感和相关的

基于光纤分布式马赫-曾德干涉仪的3*3耦合器解调算法，这种基于对称3×3 耦合器解调方法，该种解调法对于微、强振动两种信号都适用，这是由于该解调法解调出来的结果不仅准确，而且快速，其动态范围也是很大的。

This program evaluates mathematical expressions to output a single number e.g. 1+1 will give 2. It can handle brackets indices and modulation(rounding) as well and ordinary operators.

一个简单的字符冒泡排序例子-A simple example for bubble chars sorting.

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.

离散分数阶傅立叶变换-Discrete Fourier Transform

用样条拟和函数，拟和函数。Matlab编程-used to be and the kind of function, and to function. Matlab programming

应用背景进行公历与GPS周和天的计算，以及年积日的相互转换关键技术GPS周和天与公历日期的时间换算，可以由公历时间求得GPS时间，也可由GPS时间求得公历时间，还可计算年积日与公历时间和GPS时间的转换，三者之间都可进行任意换算，可以作为平时学习和工作的小工具，解决了在数据处理时的小麻烦