CFD-notes

c语言，三角函数 对数函数 数值计算 举例说明，混合计算数值计算的C语言实现(c calculator trigonometric function logarithmic function numerical calculation)

回归分析，该支持向量机算法可用于预测，电力负荷、风力发电预测等(Regression analysis, the support vector machine algorithm can be used to forecast the power load, wind power prediction)

这是一个用于一维等离子体粒子模拟的Fortran程序。(This is a one-dimensional plasma particle simulation for Fortran programs.)

复合材料破坏失效vumat子程序，使用hsshin准则判断失效，具有刚度缩减，(The VUMAT subroutine for failure of composite materials is judged by hsshin criterion, and stiffness is reduced.)

crackprop_modeI_lefm_xfem_cpe4，ABAQUS基于线弹性断裂力学的扩展有限元法实例。(crackprop_modeI_lefm_xfem_cpe4 ABAQUS based on linear elastic fracture mechanics extended finite element method instance.)

介绍了matlab和fluent联合仿真的方法，利用S函数和UDF进行通讯。(Co-simulation matlab and fluent communication, using S functions and UDF.)

求概率分布函数的参数方法 采用迭代法估计Beta分布的分布参数，(Estimation of distribution parameters of Beta distribution by iterative method)

电磁场的时域有限元仿真,用于学习电磁场的时域计算。(Time domain electromagnetic finite element simulation for learning time-domain electromagnetic field calculation.)

螺旋桨唱音信号建模，FFT变换后有明显的谐波(The propeller singing sound signal is modeled, and FFT transformation has obvious harmonic )

说明：  此代码包括牛顿法和梯度下降法的实现过程，最优化以及算法中常见的问题解决方式(This code includes the process of Newton method and gradient descent method)