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这是用C++做矩阵求逆和矩阵相乘，可以解简的线性方程。已验证，互相交流~(This is done using C++ matrix inversion and matrix multiplication, linear equations can be solved。)

用四阶龙格库塔法计算Lorenz混沌系统的时间序列(The time series of Lorenz chaotic system of fixed step size fourth-order Runge-Kutta method algorithm source code.)

说明：  用fortran 70实现数值积分，并实例计算了三个函数，导出了积分值和误差(The numerical integration is realized by FORTRAN 70, and three functions are calculated with examples. The integral values and errors are derived.)

fortran90的潮汐调和分析和预报程序(Fortran90 tidal harmonic analysis program )

给出变量的上下边界、初值和代价函数，能够搜索代价函数最小值时的变量取值。属于带约束的优化算法，可以用来求算非线性方程组。(STRSCNE is a Matlab code for constrained nonlinear systems of equations F(x)=0 l<=x<=u where F: R^n--> R^n, l and u are vectors of dimension n. Non-existent lower and upper bounds, i.e. entries of l and u equal to minus o plus infinity, are allowed. The algorithm is a globally convergent procedure that combines Newton method and an elliptical trust-region approach. The elliptical trust-region is defined employing a scaling diagonal matrix D and the trust-region subproblem is approximately solved by the dogleg method. Only strictly feasible iterates are generated. Various input/output options are provided, and we refer to the code itself for further documentation. )

代数多重程序中的 W 循环只适合 4 层 网格的 W 循环( U4EE3 u6570 u591A u91CD u7F51 u683CW u578B)

说明：  通过三个点坐标，求出圆心坐标。C#代码，主要是算法。(Through the coordinates of three points, the coordinates of the center of the circle are obtained.)

实现位场数据的向上延拓运算，有效的消除数据中的噪音及浅部干扰。(Realize the potential field data upward continuation operator, effectively eliminate the noise in the data and shallow interference.)

计算傅里叶变换程序，输入光谱，计算其傅里叶变换极限(Computing the Fourier transform procedure, the input spectra, calculate the Fourier transform limit)

这是用C++编写的 用高斯方法求解方程的方法 我想对与计算机数学的同学来说 可能会有用(It is written with C++ method for solving equations using Gaussian approach I want to mathematics and computer may be useful for the students)