Finite_element_tri

使用起来非常方便，大学数值分析算法，包括邓氏关联度、绝对关联度、斜率关联度、改进绝对关联度。( Very convenient to use, University of numerical analysis algorithms, Including Deng s correlation, absolute correlation, correlation of slope, improved absolute correlation.)

minmod限制器函数，计算流体力学TVD格式中的开关函数。(minmod limiter function)

应用FORTRAN语言编写的通过方向应力张量与应力余弦张量求解主应力矩阵(Application FORTRAN language through direction cosine stress tensor and the stress tensor matrix solving the principal stress)

该程序实现了基于罗德里格矩阵的三维坐标转换，该算法简单快速，无需迭代而具有较高的精度(The program implemented based on three-dimensional coordinate transformation matrix Rodriguez, the algorithm is simple and fast, without iteration and with high precision)

提供几种著名的大型线性方程组迭代算法，包括CG、PCG、Lanczos、MINRES(Several well-known large-scale linear equations iterative algorithm, including CG, PCG, Lanczos, MINRES)

abaqus三维8节点实体单元Fortran子程序，里面有详细的注释，有单元开发兴趣的同学可以下载学习(The fortran subroutine of the 8 node solid element of ABAQUS, with detailed comments in the unit development interest students can download learning)

实现矩阵转置并且方便观看，第二个程序用于进行对海表面高度SSH进行EOF分析，第三个程序进行海陆点分离并写为NC文件(Matrix transpose and convenient to watch the second program for the EOF analysis of sea surface height SSH third program separation of land and sea, and write for NC files)

同时辨识模型阶次及参数算法。用阶次递推算法，结合AIC法——利用赤池信息准则辨识上例的模型阶次和参数。(At the same time identify model order and parameters algorithm. By order recursive algorithm, combined with AIC method- the use of Akaike information criterion to identify the cases of the model order and parameters.)

重力勘探多次滑动平均方法。给出地址参数，建立网格模型，按网格进行滑动平均。得到平滑后的重力数据。可以去噪。(gravity window moving iteration)

comsol .mph 压电案例文件 详细说明了如何进行压电操作(comsol .mph piezo example file)