椭圆偏微分方程求解函数

该损伤模型通过 商用有限元软件ABAQUS /Explicit 的用户子程序VUMAT 实现，并使用该模型对碳纤维增强环氧树脂 复合材料层合板在横向低速冲击作用下的损伤和变形行为进行预测分析． 数值仿真的结果与试验结 果进行了比较，吻合良好，验证了该模型的有效性．(Through coding user subroutine VUMAT of finite element software ABAQUS /explicit， and applied the model to an example，carbon fiber reinforced epoxy composite laminates under low velocity impact，the prediction for damage and deformation were good agreement with the experimental results．)

比较完善的面向对象的有限元程序代码，适用于编写大型程序的学习(typical C++ code for OOFEM)

用基于拉格朗日函数Hesse矩阵的SQP方法求解约束优化问题(Based on Lagrangian with SQP Hesse matrix method for solving constrained optimization problems)

求解非线性不动点方程组x=G(x)的非线性塞德尔迭代方法，初值x0(For solving nonlinear fixed point equation x = G (x) the nonlinear Seidel iterative method, initial value x0)

计算流体力学软件Fluent中所有的曳力模型UDF程序(Fluent CFD software, all of the drag model for UDF)

基于最小二乘位置估计定位方法（三维的）可产生图((Three-dimensional) positioning method based on least squares position estimation in Figure)

改程序用于大地电磁法二维有限元法正演模拟(Reform program for the magnetotelluric method of two-dimensional finite element method for forward modeling)

利用Python实现特征的MinMax标准化和Z-Score标准化两种特征归一化方法。并用原特征、两种归一化特征分别进行朴素贝叶斯模型训练，比较模型性能。(Two normalization methods of MinMax normalization and Z-Score standardization are implemented by Python. The naive Bayes model is trained with the original features and two normalization features respectively to compare the performance of the model.)

欧拉角与四元数 欧拉角与四元数 欧拉角与四元数 欧拉角与四元数 欧拉角与四元数(you you you you you you you you you you you you you you you you my )

最小二乘法在二维平面测向交叉定位里的应用(The least squares method in the two-dimensional plane measured to cross positioning)