abaqus3D-8Node_uel

基二、基四、基八 FFT变化源代码，有详细注解(Second base, the base four or eight FFT-based changes in the source code, detailed comments)

克立格插值工具箱介绍，用于计算克里金插值计算问题(Kriging Toolbox introduced Kriging interpolation calculation is used to calculate)

这些代码主要是解决数学建模中存在的一些普遍问题的。(These codes mainly deal with some common problems in mathematical modeling)

说明：  通过建立截面为多边形的水平柱体模型，运用c语言程序进行编程，得出该地质体的重磁异常特点(By establishing a horizontal cylinder model with polygon cross section and programming with C language, the characteristics of gravity and magnetic anomalies of the geological body are obtained.)

对于方程组AX=b，当系数矩阵非奇异时，对原方程进行改写，利用公式X^k=BX^(k+1)+g进行迭代求解。(For equations AX = b, when the coefficient matrix is ​ ​ nonsingular, rewriting the original equation, using the formula X ^ k = BX ^ (k+1)+g for iterative solution.)

说明：  C++ SGP4 Satellite Library

共轭梯度法，本算法是经过验证了的共轭梯度法，读者在运用到其他方面时需要修改一定的参数(Conjugate gradient method, this algorithm is verified of the conjugate gradient method, readers in the use of other aspects need to modify certain parameters)

APRIORI ALGORITHM IMPLEMENTATION

采用随机数产生2到10阶的随机矩阵，并实现了矩阵的相关运算，比如：加减，乘除，求逆，求行列式(Using random Numbers generated random matrix from 2 to 10 order , and achieving relative to the implementation of the matrix operations, such as: add and subtract, multiple and divided, inverse and determinant)

说明：  模拟退火算法，地球物理反演，非线性反演算法(Simulated annealing algorithm)