PMET0

abaqus中扩展有限元（UEL）计算疲劳断裂(extended finite element method (uel)for fracture problems within the finite element software ABAQUS)

这个程序是关于轴承刚度方程的MATLAB程序(This program is about the bearing stiffness equation MATLAB program)

利用for语言精确模拟混凝土的全过程弹性本构(Accurate simulation of the whole process of elastic constitutive of concrete by for language)

无功功率补偿SVG，已经调试好了，可以用的(Reactive power compensation SVG, has been debugged, can be used.)

矩阵转换问题 行与列的个数均为n 的矩阵称为n 阶方阵。假定矩阵中的每个元素的值在0到9之间，则可以将矩阵中的所有元素按行依次排列得到一个“单行矩阵字符串”。(Matrix conversion, the number of rows and columns of the matrix n are called n-order square. Assume that each element of matrix value in the 0 to 9, you can press all the elements of the matrix rows in order of priority for a " single matrix string." )

TDMA solver for tridiagonal matrix

说明：  计算两组向量之间的旋转矩阵。输入参数为在两个不同坐标系中的同名向量（模为1），返回参数是一个3X3的旋转矩阵。(The function of RM realize the rotation between two sets of vectors, whose magnitude are 1, defined in two different refrence frames. Input parameters are two sets of vectors r and b, return value is a rotaton matrix.)

说明：  comsol仿真的学习教程，有助于初学者深度掌握comsol的 基本使用(Comsol simulation course is helpful for beginners to master the basic usage of COMSOL)

说明：  利用matlab求解方程，方程求解并画图(Equation solving and drawing)

空间数据扩边以后做fft并在频率域延拓，可用于求重磁异常(expansion of spatial data and FFT， in the frequency domain extension can be used to find the gravity and magnetic anomalies)